PhytoKeys 138: 49–112 (2020) doi: 10.3897/phytokeys.138.36144 A peer-reviewed open-access journal Checklist of Myanmar orchid flora 49 CHECKLIST http://phytokeys.pensoft.net Launched to accelerate biodiversity research An annotated checklist of Myanmar orchid flora Ye Lwin Aung1,4, Aye Thin Mu1, Mung Htoi Aung1, Qiang Liu3, Xiaohua Jin1,2 1 State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China 2 Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences, Yezin, Nay Pyi Taw 05282, Myanmar 3 Yunnan Forestry Technological College, Kunming, Yunnan, China 4 Forest Research Institute, Forest Department, Yezin, Nay Pyi Taw 05282, Myanmar Corresponding author: Xiaohua Jin (xiaohuajin@ibcas.ac.cn) Academic editor: Yun-Hong Tan | Received 13 May 2019 | Accepted 7 October 2019 | Published 10 January 2020 Citation: Aung YL, Mu AT, Aung MH, Liu Q, Jin X (2020) An annotated checklist of Myanmar orchid flora. In: Jin X-H, Xia N-H, Tan Y-H (Eds) Plant diversity of Southeast Asia-II. PhytoKeys 138: 49–112. https://doi.org/10.3897/ phytokeys.138.36144 Abstract Myanmar is situated in Southeast Asia, where species richness and diversity are very high. Myanmar orchid flora is very rich, but still poorly known because botanical explorations have sharply decreased in Myanmar since 1950. The present study provides a checklist of Myanmar orchid flora which includes 1040 species and 151 genera currently known from Myanmar, based on the herbarium specimens, literature and online databases. The number of species is increased by approximately 200 species more than that given in the checklist of Kress et al. (2003), mainly due to recent discoveries of new species to science and new records for Myanmar. There are 76 endemic species of Orchidaceae in Myanmar. It is estimated that ca. 150–300 species still remain as unidentified and are expected to be discovered in further studies on Myanmar orchid flora. Keywords Orchidaceae, Checklist, herbarium specimens, Myanmar Introduction Southeast Asia is a region of high species richness and endemism, encompassing four major global biodiversity hotspots, namely Indo-Burma hotspot, Sundaland hotspot, Wallacea hotspot and Phillipines hotspot (Myers et al. 2000, Mittermeier et al. 2011). Biodiversity in this region is under various threats to species survival, such as habitat loss and fragmentation, land use change, climate change and deforestation. Under Copyright Ye Lwin Aung et al. This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. 50 Ye Lwin Aung et al. / PhytoKeys 138: 49–112 (2020) such circumstances, Southeast Asian countries face various challenges for biodiversity conservation and the lack of financial and technical assets (Myers et al. 2000, Sodhi et al. 2004, 2010, Mittermeier et al. 2011). Myanmar is situated in Southeast Asia and is also part of the Indo-Burma biodiversity hotspot, with high species richness and diversity (Myers et al. 2000, Mittermeier et al. 2011). Due to its broad latitudinal range (tropical to subtropical), topographical (mostly mountainous) and climatic (monsoonal) factors, there are various types of ecosystems in Myanmar, from southern tropical evergreen rainforest ecosystem to northern subtropical montane forest ecosystem through central dry deciduous forests. On the other hand, as biodiversity research is very limited in Myanmar, many species of fauna and flora still remain unidentified. Biodiversity conservation is urgently needed to secure the sustainability of existing biodiversity resources in Myanmar (Giam et al. 2010, Webb et al. 2010, Forest Department 2015, Jin et al. 2018a). According to the checklist of Myanmar flora (Kress et al. 2003), there are 273 families, 2371 genera and over 11,800 species of vascular plants, including ca. 800 species of Orchidaceae recorded from Myanmar (Kress et al. 2003, Kurzweil and Lwin 2014). Botanical explorations have sharply decreased in Myanmar since 1950, leading to a large gap of knowledge on flora of Myanmar (Kress et al. 2003). Unlike neighbouring countries with intensive botanic investigation and a modern taxonomic treatment on orchid biodiversity, the orchid flora of Myanmar is very poorly known and lacks a modern taxonomic treatment (see Pearce and Cribb 2002, Ormerod and Sathish Kumar 2003, Ormerod 2005, 2012, Chen et al. 2009, Pedersen et al. 2011, 2014, Kurzweil and Lwin 2014). At the start of the 21st century, botanical explorations resumed in Myanmar, with the support of international cooperation for biodiversity conservation and research. As a result, there are discoveries of species new to science and new species records for Myanmar orchid flora over recent years (Ormerod 2005, Tanaka et al. 2010, 2015, 2018, Kurzweil et al. 2010, Kurzweil and Lwin 2012a, b, 2014, 2015, Kurzweil 2013, Watthana et al. 2015, Aung et al. 2017, Jin and Kyaw 2017, Liu et al. 2017, Yang et al. 2017, Aung and Jin 2018, Aung et al. 2018, Kurzweil and Ormerod 2018, Liu et al. 2018, Kang et al. 2019, Mu et al. 2019, Ya et al. 2019). In the review on Orchidaceae in the checklist of Kress et al. (2003), there are many species needed to be revised taxonomically due to recent advances in orchid taxonomy and systematics. For example, the genera Drymoda Lindley (1838: 8), Ione Lindley (1853: 1), Monomeria Lindley (1830b: 61), Sunipia Lindley (1826a: 14, 21, 25), Trias Lindley (1830a: 60) have been merged into Bulbophyllum Thouars (1822: 3), leading to nomenclatural changes in Bulbophyllum (Pridgeon et al. 2014, Vermeulen et al. 2014). In addition, there is a sharp increase in the number of species of Orchidaceae due to recent discoveries of species new to science and new species records for Myanmar. For example, one new species of Bulbophyllum Thouars (1822: 3), two new species of Calanthe Brown (1821: 573), three new species of Coelogyne Lindley (1821: 33), two new species of Dendrobium Swartz (1799: 2, 6: 82), two new species of Gastrodia Brown (1810: 330), one new species of Pinalia Lindley (1826b: 14, 21, 23), one Checklist of Myanmar orchid flora 51 new species of Odontochilus Blume (1858: 79) and one new species of Vanda Jones ex Brown (1820: 6: 506) have been described from Myanmar over recent years (Roberts et al. 2008, Ormerod and Wood 2010, Tanaka et al. 2010, Kurzweil 2013, Aung et al. 2017, 2018, Jin and Kyaw 2017, Liu et al. 2017, 2018, Yang et al. 2017, Aung and Jin 2018, Kurzweil and Ormerod 2018, Zhou et al. 2018a). Recently Kurzweil and Ormerod (2018) also reported 38 new records for Myanmar, also leading to an increase in the number of species of Myanmar orchid flora. Under the main theme of biodiversity conservation and research, the present study investigates the species richness of Myanmar orchid flora, based on the field investigation, herbarium specimens, literature and online databases. The present study will contribute to the floristic studies and biodiversity conservation in Myanmar. Material and methods Study areas In order to investigate species richness of Myanmar orchid flora, a programme of fieldwork has been conducted in almost all ecosystems across Myanmar. Seven protected areas across Myanmar, namely Hponkanrazi Wildlife Sanctuary and Hkakaborazi National Park of Kachin State, Popa Mountain Park of Mandalay Region, Nat Ma Taung National Park of Chin State, Alaungdaw Kathapa National Park of Sagaing Region, Taunggyi Bird Sanctuary and its adjacent areas of Shan State and Tanintharyi Nature Reserve of Tanintharyi Region, have been investigated two to five times in each protected area during 2014–2018 (Fig. 1). Specimen collections and identification In total, approximately 1,000 specimens of orchids were collected for vouchers, kept in PE and RAF (Thiers 2019, http://sweetgum.nybg.org/ih/). More than 75% of the total specimens were collected from Hponkanrazi Wildlife Sanctuary and Hkakaborazi National Park, Putao District, Kachin State, Northern Myanmar. Putao is the northernmost district of Myanmar where there are vast areas of primary forest with high species richness and diversity. The remaining proportions were collected from other study areas. In the collections, most species are Dendrobium species, Bulbophyllum species and Coelogyne species. The remaining proportions are species of common genera Eria, Liparis, and Oberonia. All collected specimens were taxonomically identified based on relevant literature, field notes, photographs taken during fieldwork, herbarium specimens (PE) and online herbarium specimens such as Kew Herbarium Catalogue and Chinese Virtual Herbarium (Seidenfaden 1992, Dressler 1993, Pedersen 1995, Pridgeon et al. 2001, 2005, 2014, Pedersen et al. 2002, 2011, 2014, Kress et al. 2003, Chen et al. 2009, Kurzweil 52 Ye Lwin Aung et al. / PhytoKeys 138: 49–112 (2020) Figure 1. Map of Myanmar, showing the location of study areas for orchid survey. and Lwin 2014, Chase et al. 2015, Chinese Virtual Herbarium 2018, Royal Botanic Gardens Kew 2018). For verification of taxonomic status of all species, literature and online databases, such as WCSP, were reviewed to confirm its respective taxonomic status (Pridgeon et al. 2001, 2005, 2014, Chen et al. 2009, Gardiner 2012, Gardiner et al. 2013, Vermeulen et al. 2014, Jin et al. 2014, Chase et al. 2015, Raskoti et al. 2016, 2017, Ng et al. 2018, WCSP 2019). Investigation of herbarium specimens In total, there were ca. 3,000 herbarium specimens examined, including specimens of our own collections (PE), Kew herbarium specimens (K) and specimen records from online herbaria: AMES, BM, E, GH, K, L, NY, P, US and W (Thiers 2019, http:// sweetgum.nybg.org/ih/). Checklist of Myanmar orchid flora 53 All available datasets of herbarium specimens (ca. 1500 specimens) and specimen photographs were downloaded from online herbaria and examined to enumerate the number of species and to investigate the species occurrences in Myanmar. The following are specimen records downloaded from each online herbarium, AMES (12 records), BM (420 records), E (496 records), GH (3 records), K (324 records), L (39 records), NY (116 records), P (87 records), US (81 records) and W (11 records) (Natural History Museum 2014, Royal Botanic Gardens Kew 2018, The BioPortal of Naturalis Biodiversity Center 2019, Smithsonian National Museum of Natural History 2019, New York Botanical Garden 2019, Royal Botanic Garden Edinburgh 2019, The Index of Botanical Specimens, Harvard University Herbaria and Libraries 2019, The Vascular Plants, Muséum National d’Histoire Naturelle 2019, The Virtual Herbaria, Naturhistorisches Museum Wien 2019). During our field trips in Myanmar, some old herbarium specimens at RAF (ca. 200 specimens) were also examined at herbarium (RAF) of Forest Research Institute in Yezin, Nay Pyi Taw. As for species occurrences, the herbarium specimens (BM, E, K) provide the information on past record of species occurrences in Myanmar, for example, old collections (past 100 years) by some well-known plant collectors, such as Charles Parish, George Forrest, J. H. Lace, Frank Kingdon-Ward, W. A. Robertson, F. G. Dickason and C. W. D. Kermode during last half of the 19th century and first half of the 20th century. The herbarium specimens (PE) provide information on the current status of species occurrences across Myanmar. In addition, some literature provides information on specimens from Myanmar that can be cited as specimen-based species occurrences in Myanmar (Kurzweil and Lwin 2015, Tanaka et al. 2015, 2018, Watthana et al. 2015, Aung et al. 2017, 2018, Jin and Kyaw 2017, Liu et al. 2017, 2018, Yang et al. 2017, Aung and Jin 2018, Kurzweil and Ormerod 2018, Zhou et al. 2018a, Ding et al. 2019, Kang et al. 2019, Mu et al. 2019, Ya et al. 2019). Verification of species occurrence and taxonomic status The number of species in the updated checklist is a result of taxonomic attempts, mainly based on our own collections, all available herbarium specimens, checklist of Kress et al. (2003) and all relevant literature. As for taxonomic status, we followed the updated classification of Orchidaceae (Chase et al. 2015) and all relevant papers of orchid taxonomy and systematics (Pridgeon et al. 2001, 2005, 2014, Chen et al. 2009, Gardiner 2012, Gardiner et al. 2013, Jin et al. 2014, Vermeulen et al. 2014, Raskoti et al. 2016, Raskoti et al. 2017, Govaerts 2018, Ng et al. 2018). In addition, all papers of new species descriptions and new records of Myanmar orchid flora were reviewed to identify the species occurrences and distribution in Myanmar (Kress et al. 2003, Roberts et al. 2008, Chen et al. 2009, Tanaka et al. 2010, 2015, 2018, Ormerod 2012, Pedersen et al. 2011, 2014, Kurzweil and Lwin 2012a, b, Kurzweil 2013, Kurzweil and Lwin 2014, Aung et al. 2017, 2018, Jin and Kyaw 2017, Koopowitz 54 Ye Lwin Aung et al. / PhytoKeys 138: 49–112 (2020) et al. 2017, Liu et al. 2017, 2018, Yang et al. 2017, Aung and Jin 2018, Kurzweil and Ormerod 2018, Zhou et al. 2018a, Ding et al. 2019, Kang et al. 2019, Mu et al. 2019, Ya et al. 2019). Both the number of species and their taxonomic status were also verified with reliable online databases such as the World Checklist of Selected Plant Families (WCSP 2019), International Plant Names Index (IPNI 2012) and the Plant List (The Plant List 2013). Global Biodiversity Information Facility (GBIF 2019) and relevant online herbaria (AMES, BM, E, GH, K, L, NY, P, US and W) were also consulted to check the species occurrences of Orchidaceae in Myanmar. Results The present study results in a checklist of Myanmar orchid flora which includes 1040 species in 151 genera, with the number of species increased by ca. 200 species more than that given in the checklist of Kress et al. (2003). The increase in number of species is mainly due to the recent discoveries of species new to science, as well as new records for Myanmar (Figs 2–4). In the last few years, there were 19 new species of Orchidaceae discovered from Myanmar, preliminarily assigned the conservation status based on the IUCN Red List Categories and Criteria (Table 1). In Myanmar, there are 76 endemic species of Orchidaceae which need high conservation attention (IUCN 2012, IUCN Standards and Petitions Subcommittee 2019) (Table 2). Local distribution information is provided for almost all species, usually at Region/ State (Provincial) level distribution ranges (Table 3). Specific distribution locality infor- Figure 2. Coelogyne putaoensis X.H.Jin, L.A.Ye & Schuit., new species discovered from Myanmar A habit of Coelogyne putaoensis B close-up of flower of Coelogyne putaoensis. Photos by X.H. Jin. Checklist of Myanmar orchid flora 55 Figure 3. New species discovered from Myanmar A Gastrodia kachinensis X.H.Jin & L.A.Ye. B Odontochilus putaoensis X.H.Jin, L.A.Ye & A.T.Mu. Photos by X.H. Jin. Figure 4. New records discovered from Myanmar A Odontochilus poilanei (Gagnep.) Ormerod B Cryptostylis arachnites (Blume) Hassk. Photos by Ye Lwin Aung. 56 Ye Lwin Aung et al. / PhytoKeys 138: 49–112 (2020) Table 1. New species of Orchidaceae discovered from Myanmar. No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 Species Conservation status (IUCN) Biermannia burmanica Y.H. Tan & Bin Yang LC Bulbophyllum putaoensis Q.Liu LC Calanthe kermodei Ormerod & Kurzweil LC Calanthe punctata Kurzweil LC Coelogyne magnifica Y.H.Tan, S.S.Zhou & B.Yang EN Coelogyne putaoensis X.H.Jin, L.A.Ye & Schuit. EN Coelogyne victoria-reginae Q.Liu & S.S.Zhou EN Cylindrolobus glabriflorus X.H.Jin & J.D.Ya LC Dendrobium hkinhumense Ormerod & Kumar EN Dendrobium koyamae Nb. Tanaka, T. Yuakawa & J. Murata LC Dendrobium naungmungense Q.Liu & X.H.Jin CR Gastrodia kachinensis X.H.Jin & L.A.Ye EN Gastrodia putaoensis X.H.Jin EN Liparis popaensis X.H.Jin, A.T.Mu & L.A.Ye LC Odontochilus putaoensis X.H. Jin, L.A. Ye & A.T. Mu EN Paphiopedilum myanmaricum Koop., Iamwir. & S.Laohap. EN Phalaenopsis natmataungensis (T.Yukawa, Nob.Tanaka & J.Murata) Dalstrom & Ormerod EN Pinalia shiuyingiana Ormerod & Wood NT Vanda longitepala D.L.Roberts, L.M.Gardiner & Mote EN Table 2. Endemic species of Orchidaceae in Myanmar. No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Species endemic to Myanmar Biermannia burmanica Y.H. Tan & Bin Yang Bletilla chartacea (King & Pantl.) Tang & Wang Bulbophyllum birmense Schltr. Bulbophyllum kachinense (Seidenf.) J.J.Verm., Schuit. & de Vogel Bulbophyllum oligoglossum Rchb. f. Bulbophyllum putaoensis Q.Liu Bulbophyllum sillemianum Rchb.f. Calanthe punctata Kurzweil Cheirostylis pubescens Parish & Rchb. f. Coelogyne magnifica Y.H.Tan, S.S.Zhou & B.Yang Coelogyne picta Schltr. Coelogyne putaoensis X.H.Jin, L.A.Ye & Schuit. Coelogyne victoria-reginae Q.Liu & S.S.Zhou Cymbidium parishii Rchb. f. Dendrobium aphrodite Rchb. f. Dendrobium calothyrsos Schltr. Dendrobium hirtulum Rolfe Dendrobium hkinhumense Ormerod & Kumar Dendrobium koyamae Nb. Tanaka, T. Yuakawa & J. Murata Dendrobium laterale L.O. Williams Dendrobium leucochlorum Rchb. f. Dendrobium luteolum Bateman Dendrobium marmoratum Rchb. f. Dendrobium naungmungense Q.Liu & X.H.Jin Dendrobium pedilochilum Schltr. Conservation status (IUCN) LC EN DD EN DD LC DD LC DD EN EN EN EN CR LC EN EN EN LC EN EN EN DD CR EN Checklist of Myanmar orchid flora No. 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 Species endemic to Myanmar Dendrobium praetermissum Seidenf. Dendrobium rhodocentrum Rchb. f. Dendrobium sarmentosum Rolfe Dilochia subsessilis (Rolfe) S. Thomas Eria sicaria Lindl. Gastrochilus pechei Schltr. Gastrodia kachinensis X.H.Jin & L.A.Ye Gastrodia putaoensis X.H.Jin Goodyera myanmarica Ormerod & C.S.Kumar Habenaria corticicola W.W. Sm. Habenaria ditricha Hook. f. Habenaria linearis King & Pantl. Habenaria massoniana King & Pantl. Habenaria mientienensis Tang & F.T. Wang Habenaria prazeri King & Pantl. Habenaria shweliensis W.W. Sm. & Banerji Habenaria spatulifolia Parish & Rchb. f. Habenaria triquetra Rolfe Habenaria yomensis Gage Liparis forrestii Rolfe Liparis popaensis X.H.Jin, A.T.Mu & L.A.Ye Liparis stenoglossa Parish & Rchb. f. Luisia amesiana Rolfe Luisia cantharis Rolfe Luisia primulina Parish & Rchb. f. Micropera secunda (Rolfe) T. Tang & F.T. Wang Neottia flabellata (W.W.Sm.) Szlach. Neottia unguiculata (W.W.Sm.) Szlach. Odontochilus putaoensis X.H. Jin, L.A. Ye & A.T. Mu Oreorchis aurantiaca Pearce & Gibbs Paphiopedilum myanmaricum Koop., Iamwir. & S.Laohap. Papilionanthe sillemiana (Rchb. f.) Garay Phalaenopsis natmataungensis (T.Yukawa, Nob.Tanaka & J.Murata) Dalstrom & Ormerod Pholidota advena Parish & Rchb. f. Pinalia brownei (Braid) Ormerod Pinalia dasypus (Rchb.f.) Kuntze Pinalia rimannii (Rchb.f.) Kuntze Pinalia shanensis (King & Pantl.) Ormerod Pinalia shiuyingiana Ormerod & Wood Platanthera longibracteata Lindl. Renanthera hennisiana Schltr. Renanthera pulchella Rolfe Rhomboda wardii Ormerod Stereochilus laxus (Rchb. f.) Garay Tainia hennisiana (Schltr.) P.F.Hunt Thunia brymeriana Rolfe Thunia candidissima Rchb. f. Uncifera verrucosa Summerh. Vanda longitepala D.L.Roberts, L.M.Gardiner & Mote Vanda vipanii Rchb. f. Vandopsis shanica (Phillimore & W.W. Sm.) Garay 57 Conservation status (IUCN) EN EN DD DD DD DD EN EN EN EN NT EN EN NT EN NT EN EN EN EN LC DD NT NT NT LC EN EN EN EN EN EN EN LC LC LC LC DD NT EN EN EN LC LC DD EN EN DD EN EN LC Ye Lwin Aung et al. / PhytoKeys 138: 49–112 (2020) 58 Table 3. Local distribution of Orchidaceae in Myanmar. No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Administrative Provinces Ayeyarwaddy Region Bago Region Chin State Kachin State Kayah State Kayin State Magway Region Mandalay Region Mon State Nay Pyi Taw Union Territory Rakhine State Sagaing Region Shan State Tanintharyi Region Yangon Region Number of species known 5 52 227 394 4 30 29 219 187 16 29 105 146 307 32 mation is also provided if known for some species. Voucher specimen citations are also provided for almost all species. In cases where herbarium specimens are lacking, the species occurrences are mainly based on the most reliable references of Kress et al. (2003) and Kurzweil and Lwin (2014). By the number of species, most genera consist of one to ten species per genus, while genera Dendrobium and Bulbophyllum consist of more than 100 species in each (Table 4). The updated checklist is mentioned in the following detail. Discussion Botanical collections are still needed to cover the whole floristic diversity of Myanmar, because botanical explorations have sharply decreased in Myanmar since 1950 (Kress et al. 2003). There is a large gap of knowledge on Myanmar flora. Perhaps there are many species to be discovered in Myanmar. The fundamental data on the number of plant species and its distribution range is still not fully known so that it needs much more research for effective plant conservation in Myanmar. In addition, it needs modern taxonomic treatments for each family or genus so as to update their classification. The orchid flora of Myanmar is very species-rich but still poorly known until now. The present study resulted in a checklist of Myanmar orchid flora which includes 1040 species and 151 genera. Botanical investigations are, however, still needed to better understand the orchid biodiversity of Myanmar. Compared with neighbouring countries with intensive orchid studies, Myanmar orchid flora have lagged behind being well-documented and well-studied. In this regard, it can be estimated that about 150–300 species still remain unexplored and are expected to be discovered in future studies on Myanmar orchid flora. As for conservation, all orchid species are legally protected by national legislation but most orchids are still under various threats for Checklist of Myanmar orchid flora 59 Table 4. Number of species in each genus in the updated checklist of Myanmar orchid flora. No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 Genera Number of species Acampe 5 Acanthephippium 1 Acriopsis 2 Aerides 5 Aeridostachya 1 Agrostophyllum 6 Ania 2 Anoectochilus 5 Anthogonium 1 Aphyllorchis 1 Apostasia 3 Appendicula 1 Arachnis 3 Arundina 1 Bambuseria 1 Biermannia 1 Bletilla 4 Brachycorythis 6 Bromheadia 2 Bryobium 1 Bulbophyllum 119 Bulleyia 1 Calanthe 30 Callostylis 3 Cephalanthera 2 Cephalantheropsis 3 Ceratostylis 4 Cheirostylis 8 Chiloschista 4 Chrysoglossum 1 Cleisomeria 2 Cleisostoma 15 Coelogyne 45 Collabium 2 Corymborkis 1 Cremastra 1 Crepidium 8 Cryptochilus 4 Cryptostylis 2 Cylindrolobus 7 Cymbidium 25 Cypripedium 3 Cyrtosia 1 Dendrobium 144 Dendrochilum 2 Dendrolirium 3 Dickasonia 1 Didymoplexis 1 Dienia 2 Diglyphosa 1 Dilochia 1 No. Genera Number of species 52 Diplomeris 2 53 Diploprora 2 54 Disperis 1 55 Epipactis 4 56 Epipogium 2 57 Eria 8 58 Eriodes 1 59 Erythrodes 2 60 Erythrorchis 1 61 Eulophia 14 62 Galearis 3 63 Galeola 2 64 Gastrochilus 10 65 Gastrodia 4 66 Geodorum 5 67 Goodyera 11 68 Grammatophyllum 1 69 Grosourdya 1 70 Gymnadenia 1 71 Habenaria 49 72 Hemipilia 3 73 Herminium 10 74 Herpysma 1 75 Hetaeria 4 76 Holcoglossum 4 77 Lecanorchis 3 78 Liparis 29 79 Ludisia 1 80 Luisia 14 81 Malaxis 2 82 Micropera 5 83 Microsaccus 1 84 Mycaranthes 3 85 Myrmechis 2 86 Neogyna 1 87 Neottia 6 88 Nephelaphyllum 3 89 Nervilia 6 90 Oberonia 29 91 Odontochilus 8 92 Oreorchis 5 93 Otochilus 4 94 Oxystophyllum 1 95 Pachystoma 1 96 Panisea 6 97 Paphiopedilum 14 98 Papilionanthe 5 99 Pecteilis 4 100 Pelatantheria 3 101 Peristylus 10 102 Phaius 6 No. 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 Total Genera Phalaenopsis Pholidota Pinalia Platanthera Pleione Podochilus Pogonia Polystachya Pomatocalpa Ponerorchis Porpax Pteroceras Renanthera Rhomboda Rhynchostylis Risleya Robiquetia Saccolabiopsis Sarcoglyphis Satyrium Schoenorchis Seidenfadenia Sirindhornia Smitinandia Spathoglottis Spiranthes Stereochilus Stereosandra Stichorkis Strongyleria Taeniophyllum Tainia Thecostele Thelasis Thrixspermum Thunia Thuniopsis Tipularia Trachoma Trichoglottis Trichotosia Tropidia Tuberolabium Uncifera Vanda Vandopsis Vanilla Vrydagzynea Zeuxine Number of species 14 11 33 16 10 4 1 1 2 5 12 3 5 3 2 1 3 1 3 1 2 1 1 2 4 1 3 1 1 1 1 4 1 5 5 5 1 1 1 5 8 2 1 2 17 3 3 2 9 1040 60 Ye Lwin Aung et al. / PhytoKeys 138: 49–112 (2020) their survival, such as habitat loss due to deforestion and land use change. Orchids are, however, regarded as special plants in Myanmar society in terms of cultural ornamental purposes. Historically, Bulbophyllum auricomum Lindl. has been recognised as a royal flower in Myanmar during the period of Konbaung dynasty (1752–1885). Nowadays, it has been recognised as one of the national flowers of Myanmar, indicating the special attention of Myanmar society on orchids (Hinsley et al. 2018). Thus, it is obvious that the special role of orchids might enhance the orchid biodiversity conservation in Myanmar. As for plant species richness in Myanmar, there are many new species described from Myanmar over recent years, for example, two new species of Annonaceae, one new species of Aristolochiaceae, one new species of Asteraceae, three new species of Balsaminaceae, one new species of Begoniaceae, two new species of Lamiaceae, one new species of Magnoliaceae, 10 new species of Orchidaceae, one new species of Phyllanthaceae and one new species of Zingiberaceae (Aung et al. 2017, 2018, Jin and Kyaw 2017, Liu et al. 2017, Tan et al. 2017, Tseng et al. 2017, Yang et al. 2017, 2018a, b, Aung and Jin 2018, Ding et al. 2018, Liu et al. 2018, Li and Ren 2018, Ruchisansakun et al. 2018, Tan et al. 2018, Ya et al. 2019, Yao et al. 2018, Zhou et al. 2018a, b, Mu et al. 2019). Recently there are discoveries of two new plant familial records for Myanmar, namely Petrosaviaceae and Triuridaceae (Jin and Mint 2018, Jin et al. 2018b). It is very obvious that species richness is very high in Myanmar, with evidence of recent discoveries of species new to science and new records. With many more botanical explorations, the knowledge gap on the flora of Myanmar can be filled in the future. Checklist The checklist consists of the following data (Table 5): 1. Accepted taxon name and its author (s). Endemic species are mentioned in bold text, 76 species in total. 2. Local Distribution in Myanmar, usually Region/State (Provincial) level. In Myanmar, there are 15 administrative provinces including Nay Pyi Taw Union Territory, seven Regions (Ayeyarwaddy, Bago, Magway, Mandalay, Sagaing, Tanintharyi and Yangon) and seven States (Chin, Kachin, Kayah, Kayin, Mon, Rakhine and Shan). Specific localities are provided if known. 3. Specimen Citations: Collector (s), Collection number (s) and Herbarium codes (Thiers 2019, http://sweetgum.nybg.org/ih/). All specimens cited with exclamation mark (!) have been examined. Some specimens without exclamation mark (!) are studied and known from literature of new species description or new species records. Checklist of Myanmar orchid flora 61 Table 5. Checklist of Myanmar orchid flora. 1 2 No. Species Acampe carinata (Griff.) Panigr. Acampe cephalotes Lindl. 3 Acampe joiceyana (J.J. Sm.) Seidenf. 4 Acampe ochracea (Lindl.) Hochr. 5 Acampe praemorsa (Roxb.) Blatter & McCann 6 Acanthephippium sylhetense Lindl. 7 Acriopsis indica Wight 8 9 Acriopsis liliifolia (Koen.) Ormerod Aerides crassifolia Parish ex Burb. 10 Aerides falcata Lindl. & Paxton Mt. Popa, Mandalay 11 12 13 Aerides multiflora Roxb. Aerides odorata Lour. Aerides rosea Lodd. ex Lindl. & Paxton Aeridostachya crassipes (Ridl.) Rauschert Agrostophyllum brevipes King & Pantl. Mon Reported from Myanmar Putao, Kachin 16 Agrostophyllum callosum Rchb. f. 17 Agrostophyllum glumaceum Hook.f. Chin, Kachin, Magway, Mandalay, Sagaing, Shan, Tanintharyi YePhyu, Tanintharyi 18 Agrostophyllum planicaule (Wall. ex Lindl.) Rechb.f. 19 Agrostophyllum stipulatum (Griff.) Schltr. Agrostophyllum superpositum Schltr. Ania angustifolia Lindl. 14 15 20 21 22 Ania viridifusca (Hook.) Tang & W.T.Wang ex Summerh. 23 Anoectochilus albolineatus Parish & Rchb. f. Anoectochilus burmannicus Rolfe Anoectochilus chapaensis Gagnep 24 25 Local distribution Listed as occurrence in Myanmar Putao, Kachin; Taunggyi, Shan Mt. Popa, Mandalay YePhyu, Tanintharyi; Mt. Victoria, Chin Mt. Popa, Mandalay; Bago (Pegu); Tanintharyi Chin; Kachin; Magway; Mon; Sagaing; Taunggyi, Shan Tanintharyi Nature Reserve, YePhyu,Tanintharyi; Mt. Victoria, Chin YePhyu, Tanintharyi Mt. Popa, Mandalay Putao, Kachin Putao, Kachin Specimen citations Kurzweil and Lwin 2014 Xiaohua Jin et al. PT-5240 (PE!); Ye Lwin Aung PT-7601 (PE!) Khin Myo Htwe 102 (spirit collection-MBK, TNS) Ye Lwin Aung PT- 7307, PT7542, PT-7356 (PE!) s.coll. s.n. (P!); Khin Myo Htwe 13 (spirit collectionMBK, TNS) Ye Lwin Aung PT-7594 (PE!) Ye Lwin Aung PT-7269, PT7350, PT-7565 (PE!); Hlaing Ko 19 (NY!) Ye Lwin Aung PT-7333 (PE!) Khin Myo Htwe 14 (spirit collection-TNS), Tanaka et al. 036165 (MBK) Lace 6204 (E!); Khin Myo Htwe 33 (spirit collectionTNS) Herb. Helfer 5222 (NY!) Kress et al. 2003 Xiaohua Jin et al. PT-6998 (PE!) Xiaohua Jin et al. PT-2045, PT-2071, PT-5283 (PE!) Xiaohua Jin et al. PT-5243 (PE!), Ye Lwin Aung PT-7043 (PE!) Ye Lwin Aung PT-7178 (PE!) Ye Lwin Aung PT-7325, PT7346 (PE!) Mandalay; YePhyu & Dawei (Tavoy), Ye Lwin Aung PT-7291, PTTanintharyi 7293 (PE!); R.C.F. Swinhoe 71 (K!); Keenan et al. 5094 (E!) Myeik (Mergui), Tanintharyi Griffith 5220 (K!) Putao, Kachin Dawei (Tavoy), Tanintharyi Ye Lwin Aung PT-7116 (PE!) Wallich 3740 (E!) & (BM!); Keenan et al. 1596 (E!); Kingdon-Ward 22717 (BM!) Chin; Kachin; Kyaikkahmi Lace 5622 (E!); Keenan et (Amherst), Mon al. 3817 (E!); Kingdon-Ward 21737 (BM!) Mt. Victoria, Chin; Moulmein, Mon; Parish 325 (K); Kingdon-Ward Tanintharyi 22872 (BM!) Kadat Reserve, Bago (Pegu) Roger s.n. (K!) Putao, Kachin Qiang Liu 319 (HTIBC!) 62 Ye Lwin Aung et al. / PhytoKeys 138: 49–112 (2020) No. Species 26 Anoectochilus lylei Rolfe ex Downie 27 Anoectochilus roxburghii Lindl. 28 Anthogonium gracile Lindl. 29 30 31 Aphyllorchis montana Rchb. f. Apostasia nuda R. Br. Apostasia odorata Blume 32 Apostasia wallichii R. Br. 33 Appendicula cornuta Blume 34 Arachnis clarkei J.J.Sm. 35 Arachnis labrosa (Lindl. & Paxton) Rchb. f. 36 Arachnis siamensis (Schltr.) Tang & F.T.Wang Arundina graminifolia (D. Don) Hochr. 37 38 Bambuseria bambusifolia (Lindl.) Schuit., Y.P.Ng & H.A.Pedersen 39 Biermannia burmanica Y.H. Tan & Bin Yang 40 Bletilla chartacea (King & Pantl.) Tang & Wang Bletilla foliosa (King & Pantl.) Tang & Wang Bletilla formosana (Hayata) Schltr. Bletilla striata (Thunb.) Rchb. f. 41 42 43 44 Brachycorythis acuta (Rchb.f.) Summerh. 45 Brachycorythis galeandra (Rchb. f.) Summerh. Brachycorythis helferi (Rchb. f.) Summerh. 46 Local distribution Kachin; Katha, Sagaing Specimen citations Kingdon-Ward 20499 (BM!); Lace s.n. (E!) Chin; Putao, Kachin Xiaohua Jin et al. PT-ET 246, PT-ET 1110 (PE!); Kate Armstrong 2331 (NY!); Kingdon-Ward 21519 (BM!) Putao, Kachin; Mogok, Mandalay; Xiaohua Jin et al. PT-ET Shan; Mon; Tanintharyi 454 (PE!); Lace 6016 (E!); MacGregor 818 (E!) Chin Kingdon-Ward 22609 (BM!) Myeik (Mergui), Tanintharyi Griffith 100 (K!) Putao, Kachin Xiaohua Jin et al. PT-2544 (PE!) Mt. Popa, Mandalay; Putao, Kachin Xiaohua Jin et al. PT-ET 156 (PE!); Prazer 101 (E!); Keenan et al. 983 (E!); Khin Myo Htwe 030019 (MBK) Putao, Kachin; Tanintharyi Ye Lwin Aung PT-7171, PT7180 (PE!) Chin; Shan Kingdon-Ward 22876 & 22718 (BM!); Phillimore s.n. (P!) Putao, Kachin; Mon; Tanintharyi; Xiaohua Jin et al. PT-5342 Mt. Popa, Mandalay (PE!); Tanaka et al. 036150 (MBK) Mt. Popa, Mandalay Khin Myo Htwe 108 (spirit collection-MBK, TNS) Chin; Putao, Kachin; Magway; Xiaohua Jin et al. PT-6771 Mandalay; Mon; Sagaing; Shan (PE!); G. Forrest 24662 (E!); Prazer 102 (E!); MacGregor 823 (E!); Keenan et al. 3928 (E!); Kate Armstrong 2281 (NY!); Kingdon-Ward 22509 (BM!) Sumprabum, Kachin; Southern Shan Keenan et al. 3823 (K!) & State (E!); W.A. Robertson 84 (K!); Kingdon-Ward 21664 (BM!) Putao, Kachin Y.H. Tan, B. Yang, H.B. Ding, M.B. Maw & T.S. Tin M1593 (holotype, HITBC) Listed as occurrence in Myanmar Kurzweil and Lwin 2014 Pyin Oo Lwin (Maymyo), Mandalay Lace 5883 (E!); English 145 (E!) Listed as occurrence in Myanmar Kurzweil and Lwin 2014 Kachin; Mon; Taunggyi, Shan Farrer 994 (E!); Forrest 29728 (E!); Kingdon-ward 16780 (E!); Maung Po Khant 16337 (E!); Dickason 837 (P!) Paungbyin Reserve, Upper Chindwin, Lace 4222 (K!) & (E!); Prazer Sagaing; Mindat, Chin 89 (E!); Kingdon-Ward 22426 (BM!) Myikyina, Kachin; Ayeyarwaddy Mokim 22 (BM!) & 82 (P!) & (US); Belcher 9480 (US) Mt. ZweKaBin, Kayin; Mon Xiaohua Jin et al. PT-2570 (PE!); Parish s.n. (K!); Helfer 244 (K!); Keenan et al. 890 (E!) Checklist of Myanmar orchid flora No. Species 47 Brachycorythis henryi (Schltr.) Summerh. 48 Brachycorythis neglecta Pedersen 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 Brachycorythis obcordata (Lindl.) Summerh. Bromheadia aporoides Rchb. f. Bromheadia finlaysoniana (Lindl.) Miq. Bryobium pudicum (Ridl.) Y.P.Ng & P.J.Cribb Bulbophyllum affine Lindl. Bulbophyllum alcicorne Parish & Rchb. f. Bulbophyllum amplifolium (Rolfe) Balakr. & Chowdhury Bulbophyllum andersonii (Hook.f.) J.J.Sm. Bulbophyllum apodum Hook.f. Bulbophyllum auricomum Lindl. Bulbophyllum bifurcatoflorens (Fukuy.) J.J.Verm., Schuit. & de Vogel Bulbophyllum birmense Schltr. Bulbophyllum blepharistes Rchb. f. Bulbophyllum candidum (Lindl.) Hook.f. Bulbophyllum canlaonense Ames Bulbophyllum capillipes Parish & Rchb. f. Bulbophyllum capnophyton J.J.Verm., Schuit. & de Vogel 66 Bulbophyllum careyanum Spreng. 67 68 Bulbophyllum cariniflorum Rchb.f. Bulbophyllum caudatum Lindl. 69 Bulbophyllum cauliflorum Hook. f. 70 Bulbophyllum clandestinum Lindl. 63 Local distribution Shan Specimen citations Maung Po Khant 16312 (E!) Pyin Oo Lwin (Maymyo), Mandalay; Lashio, Shan Listed as occurrence in Myanmar Lace 4827, 5304 & 5837 (E!); Keenan et al. 575 (E!); MacGregor 678 (E!) Kurzweil and Lwin 2014 Mon, Tanintharyi Listed as occurrence in Myanmar Kress et al. 2003 Kurzweil and Lwin 2014 Putao, Kachin Recorded from Myanmar Mon, Tanintharyi Xiaohua Jin et al. PT-2444 (PE!), Ye Lwin Aung PT-7068, PT-7073, PT-7080, PT-7099, PT-7111 (PE!) s.coll.s.n. (E!) Kress et al. 2003 Listed as occurrence in Myanmar Kurzweil and Lwin 2014 Putao, Kachin Ye Lwin Aung PT-7114 (PE!) Shan s.coll. s.n. (K!) Taunggoo, Bago; Haka, Chin; Venning 6 (K!); Wallich 1985 Kachin; Mon; Rakhine; Tanintharyi; (K!); s.coll. s.n. (K!); Lace s.n. Yangon (E!); Reynaud 60 (P!); Griffith s.n. (P!) Recorded from Myanmar Kress et al. 2003 Reported from Myanmar YePhyu, Tanintharyi Putao Township, Kachin State Putao, Kachin Chin, Mon, Tanintharyi YePhyu, Tanintharyi Kress et al. 2003 Ye Lwin Aung PT-7245, PT7341, PT-7252, PT-7260 (PE!) Kurzweil & Saw Lwin KL 2637 (SING, spirit collection) Ye Lwin Aung PT-7199, PT7198, PT-7118 (PE!) Kress et al. 2003 Saw Lwin et al. TNRO 162 (SING, SING(spirit), Herbarium of Tanintharyi Nature Reserve Education Centre) Paunglaung Creek, Nay Pyi Taw-Shan Ye Lwin Aung PT-7383, PTYoma; Alaungdaw Kathapa National 7384, PT-7452, PT-7453, Park, Sagaing; Mt. Victoria, Chin; PT-7577 (PE!); Lois & Soren Kalaw, Shan Egerod B-82 (K!) Listed as occurrence in Myanmar Kurzweil and Lwin 2014 Putao, Kachin Xiaohua Jin et al. PT-2500 (PE!) Putao, Kachin; Mon Ye Lwin Aung PT-7052, PT7159, PT-7164, PT-7051, PT-7202, PT-7212 (PE!) Myeik (Mergui), Tanintharyi; S. Kurz s.n. (K!); Griffith 5295 Andaman Island (K!) 64 Ye Lwin Aung et al. / PhytoKeys 138: 49–112 (2020) No. Species 71 Bulbophyllum collettii King & Pantl. 72 Bulbophyllum comosum Collett & Hemsl. 73 Bulbophyllum crabro (C.S.P.Parish & Rchb.f.) J.J.Verm., Schuit. & de Vogel 74 Bulbophyllum crassipes Hook. f. Local distribution Listed as occurrence in Myanmar Taunggyi, Shan Putao, Kachin; Kayin; Mon; Tanintharyi Kayin; Moulmein, Mon; Rakhine; Alaungdaw Kathapa National Park, Sagaing Kachin; Bago; Mon; Tanintharyi Putao, Kachin Specimen citations Kurzweil and Lwin 2014 H. Collett 100 (K!); s.coll. s.n. (K!) Ye Lwin Aung PT-2264 (PE!); s.coll. s.n. (K!); Kingdon-Ward 10181 (BM!) Ye Lwin Aung PT-7440, PT7441 (PE!); A. Meebold 17424 (K!) Bull 48 (K!); Lace 6097 (E!) Xiaohua Jin et al. PT-2389, PT-2547 (PE!), Ye Lwin Aung PT-7107 (PE!) Kress et al. 2003 Qiang Liu 500 (HITBC!) Xiaohua Jin et al. PT-6143 (PE!); Dickason 8444 (AMES) Kress et al. 2003 75 76 Bulbophyllum cupreum Lindl. Bulbophyllum cylindraceum Wall. ex Lindl. 77 78 79 Bulbophyllum dayanum Rchb. f. Bulbophyllum delitescens Hance Bulbophyllum dickasonii Seidenf. Mon, Tanintharyi Putao, Kachin Putao, Kachin 80 Bulbophyllum drymoda J.J.Verm., Schuit. & de Vogel Bulbophyllum drymoglossum Maxim. Kayin, Tanintharyi Bulbophyllum elatum (Hook.f.) J.J. Sm. Bulbophyllum emarginatum (Finet) J.J.Sm. Bulbophyllum eublepharum Rchb.f. Bulbophyllum farreri (W.W. Sm.) Seidenf. Bulbophyllum forrestii Seidenf. Nogmung Township, Kachin State Recorded from Myanmar Reported from Myanmar Kress et al. 2003 91 Bulbophyllum gracillimum (Rolfe) Rolfe Bulbophyllum guttulatum Wall. ex Hook. f. Bulbophyllum haniffii Carr Bulbophyllum helenae (Kuntze) J.J. Sm. Bulbophyllum hirtum Lindl. Xiaohua Jin et al. PT-5279 (PE!); Kingdon-Ward 1554 (E!); Forrest 26609 (P!) & (US) s.coll. s.n. (K!) 92 Bulbophyllum intricatum Seidenf. 93 Bulbophyllum kachinense (Seidenf.) J.J.Verm., Schuit. & de Vogel Bulbophyllum kanburiense Seidenf. Bulbophyllum khasyanum Griff. Bulbophyllum kingii Hook.f. Bulbophyllum lasiochilum Parish & Rchb. f. 81 82 83 84 85 86 87 88 89 90 94 95 96 97 Putao, Kachin Kachin Listed as occurrence in Myanmar Htawgaw, Upper Burma Putao & Hpimaw, Kachin Xiaohua Jin et al. PT-6891 (PE!) Kingdon-Ward 7408 (K) Kingdon-Ward 73 (BM!) & (NY!) Kurzweil and Lwin 2014 Kingdon-Ward 1560 (E!) Mon, Tanintharyi Mt. Victoria, Chin Kress et al. 2003 Ye Lwin Aung PT-7516, PT7551 (PE!); Forrest 26609 (E!) Putao, Kachin; Chin; Shan; Xiaohua Jin et al. PT-5280 Tanintharyi (PE!); Keenan et al. 3033 (E!); MacGregor 2524 (E!); Kate Armstrong 2408 (NY!) Putao, Kachin; southwestern part of Qiang Liu M16-29 (HITBC!); Shan; Webula, Falam, Chin Fujikawa et al. 101848 (MBK); Daun 44 (K!) Kachin Kress et al. 2003 Reported from Myanmar Putao, Kachin; Tanintharyi Recorded from Myanmar Reported from Myanmar Kress et al. 2003 Qiang Liu 477 (HITBC!) Kingdon-Ward 13507 (BM!) Kress et al. 2003 Checklist of Myanmar orchid flora No. Species 98 Bulbophyllum laxiflorum (Blume) Lindl. 99 Bulbophyllum lemniscatum Parish ex Hook. f. 100 Bulbophyllum leopardinum (Wall.) Lindl. 101 Bulbophyllum lepidum (Blume) J.J.Sm. 102 Bulbophyllum limbatum Parish & Rchb. f. 103 Bulbophyllum lindleyanum Griff. 104 Bulbophyllum lineatum (Teijsm. & Binn.) J.J. Sm. 105 Bulbophyllum lobbii Lindl. 106 Bulbophyllum longipes Rchb.f. 107 Bulbophyllum lopalanthum J.J.Verm., Schuit. & de Vogel 108 Bulbophyllum macphersonii Rupp 109 Bulbophyllum macranthum Hook. f. 110 Bulbophyllum microtepalum Rchb. f. 111 Bulbophyllum moniliforme Parish & Rchb. f. 113 114 Bulbophyllum muscarirubrum Seidenf. Bulbophyllum nasutum Rchb.f. Bulbophyllum nigrescens Rolfe 115 Bulbophyllum oblongum Rchb.f. 116 Bulbophyllum odoratissimum Lindl. 117 Bulbophyllum oligoglossum Rchb. f. Bulbophyllum orientale Seidenf. 112 118 119 120 121 Bulbophyllum ornatissimum (Rchb. f.) J.J. Sm. Bulbophyllum parviflorum Parish & Rchb. f. Bulbophyllum pectinatum Finet 65 Local distribution Mon, Tanintharyi Specimen citations Kress et al. 2003 Mon; Tanintharyi; Taunggoo, Bago Mt. Victoria, Chin Lhin 4411 (K!); Parish 211 (K!) Ye Lwin Aung PT-7530 (PE!) Chin; YePhyu, Tanintharyi Ye Lwin Aung PT-7358 (PE!) Reported from Myanmar Kress et al. 2003 Reported from Myanmar Bago, Tanintharyi, Yangon Kress et al. 2003 s.coll. 89 (K!) Kayin, Rakhine, Tanintharyi Mon, Tanintharyi Mandalay Lace s.n. (E!) Kress et al. 2003 Xiaohua Jin et al. PT-5235 (PE!) Kress et al. 2003 Kress et al. 2003 Kress et al. 2003 Ye Lwin Aung PT-7407, PT7337, PT-7480 (PE!); Parish 96 (K!) Kurzweil and Lwin 2014 Tanintharyi Bago, Tanintharyi Mon, Tanintharyi Mt. Victoria, Chin; Mon; YePhyu, Tanintharyi; Alaungdaw Kathapa National Park, Sagaing Listed as occurrence in Myanmar Mon, Tanintharyi Myitkyina, Kachin; PyinOoLwin (Maymyo), Mandalay; Shan Parish 263 (K!) Kermode 17332 (AMES) & (K!); A. Samuel 13537 (K!); Egerod B-17 (US) Mon, Tanintharyi Parish 264 (K!); Griffith s.n. (P!) Myitkyina & Putao, Kachin; Webula, Xiaohua Jin et al. PT-2043, Falam, Chin; Myeik(Mergui), PT-2073, PT-2385, PT-2457 Tanintharyi; Taunggoo, Bago (PE!); Ye Lwin Aung PT-7042, PT-7117, PT-7161, PT-7162, PT-7165, PT-7048, PT-7194 (PE!); C.Bagg B-13 (K!); Su Kae 10032 (K!); Daun 35 (K!); C.W.D. Kermode 17329 (K!); A.F.G. Kerr 01005 (K!); Inokum s.n. (K!); Mokum s.n. (US) Reported from Myanmar Kress et al. 2003 Recorded from Myanmar Reported from Myanmar SBGO 3651 (SING, spirit collection) Kress et al. 2003 Putao, Kachina; Mon; Tanintharyi Qiang Liu M16-4 (HITBC!) Mt. Victoria, Chin; Near Black Rock, Myitkyina, Kachin Ye Lwin Aung PT-7477, PT7537, PT-7539, PT-7553 (PE!); R.C.F. Swinhoe R 113, 35 (K!); C.W.D. Kermode 17328 (K!); Bull 135 (K!) 66 Ye Lwin Aung et al. / PhytoKeys 138: 49–112 (2020) No. Species 122 Bulbophyllum penicillium Parish & Rchb. f. 123 Bulbophyllum pictum C.S.P.Parish & Rchb.f. 124 Bulbophyllum picturatum (Lodd.) Rchb. f. 125 Bulbophyllum polliculosum Seidenf. 126 Bulbophyllum polyrrhizum Lindl. 127 128 129 130 Bulbophyllum protractum Hook. f. Bulbophyllum pseudopicturatum (Garay) Sieder & Kiehn Bulbophyllum psittacoglossum Rchb. f. Bulbophyllum pteroglossum Schltr. 133 Bulbophyllum pumilio Parish & Rchb. f. Bulbophyllum purpureofuscum J.J.Verm., Schuit. & de Vogel Bulbophyllum putaoensis Q.Liu 134 Bulbophyllum reclusum Seidenf. 135 137 138 Bulbophyllum refractum (Zoll.) Rchb. f. Bulbophyllum reichenbachii (Kuntze) Schltr. Bulbophyllum repens Griff. Bulbophyllum reptans Griff. 139 Bulbophyllum retusiusculum Rchb. f. 140 Bulbophyllum rimannii (Rchb.f.) J.J.Verm., Schuit. & de Vogel Bulbophyllum rolfei (Kuntze) Seidenf. Bulbophyllum roseopictum J.J.Verm., Schuit. & de Vogel Bulbophyllum roseum Ridl. Bulbophyllum rufilabrum Parish Bulbophyllum rufinum Rchb. f. Bulbophyllum sarcophyllum (King & Pantl.) J.J. Sm. 131 132 136 141 142 143 144 145 146 Local distribution Mon, Tanintharyi Mon, Tanintharyi Specimen citations Ye Lwin Aung PT-7330 (PE!); s.coll. s.n. (K!); Parish 303 (K!) Kress et al. 2003 Mt. Popa, Mandalay Khin Myo Htwe 133 (spirit collection-TNS) Listed as occurrence in Myanmar Kurzweil and Lwin 2014 Webula, Kalaymyo, Chin; Shan; Mt. R.C.F. Swinhoe 91 & 94 (K!); Popa, Mandalay F.G. Dickason 7225 (K!); Egerod B-225 (US); Khin Myo Htwe 98 (spirit collectionMBK) Tanintharyi Kress et al. 2003 Listed as occurrence in Myanmar Kurzweil and Lwin 2014 Tanintharyi Kress et al. 2003 Putao, Kachin Xiaohua Jin et al. PT-ET 1060 (PE!) Parish 220 (K!) Kalamataung, Mon; Tanintharyi Putao, Kachin Chin, Tanintharyi Xiaohua Jin et al. PT-2442 (PE!) Q. Liu 330 (holotype, HITBC!) Khin Myo Htwe 53 (spirit collection-MBK, TNS), Khin Myo Htwe 25 (spirit collection-MBK, TNS) Kress et al. 2003 Kayin, Mon Parish 200 (K!); s.coll. s.n. (K!) Wasadam village, Putao County, Kachin State Mt. Popa, Mandalay Tanintharyi Putao, Kachin; Mt. Victoria, Chin Kress et al. 2003 Xiaohua Jin et al. PT-2548 (PE!), Ye Lwin Aung PT-7535, PT-7536 (PE!); Dackason 7500 (K!); Forrest 26516 (E!) & (US!); Kate Armstrong 1951 (NY!); Forrest 26516 (NY!); Kingdon-Ward 384 (NY!) Mt. Victoria, Chin; Dawei (Tavoy), Keenan et al. 5615 (E!); Tanintharyi Cooper 6082 (E!); Forrest 26603 (US) Shan Phillimore s.n. (K!) Nogmung Township, Kachin State Putao, Kachin Saw Lwin KSL 1080, 1089 (RAF) Kate Armstrong 2063 (NY!) Mon, Rakhine, Tanintharyi Tanintharyi Mandalay; Tanintharyi Listed as occurrence in Myanmar Kress et al. 2003 Kress et al. 2003 R.C.F. Swinhoe K77 (K!) Kurzweil and Lwin 2014 Checklist of Myanmar orchid flora No. Species 147 Bulbophyllum scabratum Rchb.f. Local distribution Specimen citations Nogmung Township, Chipwi Toppin 6265 (K!); Forrest Township, Northeastern Part, Kachin 26603 (K & E!); Saw Lwin State KSL 1082 (RAF) Kentung, Shan State Dickason 9693 (AMES) Mt. Victoria, Chin; Kachin; Magway; A. Samuel 13549 (K!); R.C.F. PyinOoLwin (Maymyo), Mandalay; Swinhoe 122 (K!); White 380 Sagaing; Shan (US) Reported from Myanmar Kress et al. 2003 148 149 Bulbophyllum scaphiforme Verm. Bulbophyllum secundum Parish & Rchb. f. 150 Bulbophyllum serratotruncatum Rchb. f. Bulbophyllum shanicum King & Shan Pantl. Bulbophyllum sicyobulbon Parish & Mt. Popa, Mandalay; Mon; Rchb. f. Tanintharyi Bulbophyllum sillemianum Recorded from Myanmar Rchb.f. Bulbophyllum spathulatum (Rolfe ex Shan Cooper) Seidenf. Bulbophyllum stenobulbon Parish & Putao, Kachin; Mon; Tanintharyi Rchb. f. Bulbophyllum sterile (Lam.) Suresh Paunglaung Creek, Nay Pyi Taw-Shan Yoma; Mon Bulbophyllum striatum (Griff.) Nogmung Township, Kachin State Rchb.f. Bulbophyllum suavissimum Rolfe Chin; Kachin; Magway; Mandalay; Kyaikkami(Amherst), Mon; Sagaing; Shan Bulbophyllum sulcatum (Blume) Putao, Kachin; Mt. Victoria, Chin; Lindl. YePhyu, Tanintharyi 151 152 153 154 155 156 157 158 159 160 Bulbophyllum sunipia J.J.Verm., Schuit. & de Vogel 161 164 Bulbophyllum taeniophyllum Parish & Rchb. f. Bulbophyllum thaiorum J.J. Sm. Bulbophyllum tripudians Parish & Rchb. f. Bulbophyllum triste Rchb. f. 165 Bulbophyllum umbellatum Lindl. 166 Bulbophyllum wallichii Rchb.f. 167 Bulbophyllum wendlandianum (Krzl.) Dammar Bulbophyllum wightii Rchb. f. Bulbophyllum xylophyllum Parish & Rchb. f. Bulbophyllum yoksunense J.J.Sm. Bulbophyllum yunnanense Rolfe 162 163 168 169 170 171 67 Putao, Kachin; Mt. Victoria, Chin; Mon; Taunggyi, Shan; Tanintharyi Mon, Shan, Tanintharyi Abdul Huk s.n. (K!) Ye Lwin Aung PT-7458 (PE!); R.C.F. Swinhoe 95 (K!) Perrin s.n. (P!) s.coll. s.n. (K!) Ye Lwin Aung PT-7197, PT7186, PT-7192, PT-7218 (PE!) Ye Lwin Aung PT-7375 (PE!) Saw Lwin KSL 1063 (RAF) C.E. Parkinson 5114 (K!); Brassen s.n. (K!); Cooper s.n. (K!); Lace 5606 (E!) Ye Lwin Aung PT-7324, PT7361, PT-7517, PT-7187, PT-7219, PT-7360 (PE!) Xiaohua Jin et al. PT-2050, PT-2074, PT-2099 (PE!); Ye Lwin Aung PT-7557, PT-7579 (PE!); Su Lay 10014 (K!); Kingdon-Ward 3028 (E!) Kingdon-Ward 20634 (BM!) Listed as occurrence in Myanmar Mt. Victoria, Chin Kurzweil and Lwin 2014 Ye Lwin Aung PT-7518, PT7519 (PE!) Mt. Victoria, Chin; Taunggyi, Shan; Ye Lwin Aung PT-7538 (PE!); Bago; Tanintharyi Parish 207 (K!); MacKee 6184 (P!) Near Kangfang, Myitkyina & Putao, Kermode 17288 (K!); Daun Kachin; Falam, Chin 73 (K!); Kingdon-Ward 9348 (BM!) Kachin; Hkamti, Sagaing Mokim 5 (E!); Kate Armstrong 3107 (NY!) Reported from Myanmar Kress et al. 2003 Reported from Myanmar Mon, Rakhine, Tanintharyi Kress et al. 2003 Parish 82 (K!) Putao, Kachin Putao, Kachin Kingdon-Ward 13304 (BM!) Ye Lwin Aung PT-7035 (PE!) 68 Ye Lwin Aung et al. / PhytoKeys 138: 49–112 (2020) No. Species 172 Bulleyia yunnanensis Schltr. Local distribution Chipwi Township, Kachin State Specimen citations Kingdon-Ward 1837 & s.n. (E!) Putao Township, Kachin State Xiaohua Jin et al. PT-2082, PT-2203, PT-2381, PT-2382 (PE!); Kurzweil & Lwin 2693 (SING, spirit) Upper Myanmar, Kachin State; valley Kingdon-Ward 21170 of the Dichu (AMES); F.K.W. 7126 (K!); Kingdon-Ward 1653 (E); s.coll. S.n. (E!) valley of the Dichu; Chipwi Kingdon-Ward 7177 (K!); Township, Kachin State Kingdon-Ward 1654, 1696, 1721 (E); s.coll. s.n. (E!) Putao, Kachin Ye Lwin Aung PT-7166 (PE!) 173 Calanthe alismifolia Lindl. 174 Calanthe alpina Hook.f. ex Lindl. 175 Calanthe arcuata Rolfe 176 177 Calanthe baliensis J.J.Wood & J.B.Comber Calanthe biloba Lindl. 178 179 180 Calanthe brevicornu Lindl. Calanthe ceciliae Rchb. f. Calanthe clavata Lindl. Chin, Kachin, Magway, Mandalay, Sagaing, Shan Kachin Shan Recorded from Myanmar 181 Calanthe densiflora Lindl. Putao, Kachin 182 183 Calanthe griffithii Lindl. Calanthe hancockii Rolfe 184 Calanthe herbacea Lindl. Upper Myanmar Kangfang-hlawpaw, Myitkyina, Kachin Putao, Kachin 185 Calanthe kermodei Ormerod & Kurzweil 186 187 Calanthe labrosa (Rchb. f.) Rchb. f. Calanthe lamellosa Rolfe 188 Calanthe lyroglossa Rchb. f. 189 Calanthe mannii Hook.f. 190 Calanthe masuca (D.Don) Lindl. 191 192 193 Calanthe odora Griff. Calanthe plantaginea Lindl. Calanthe puberula Lindl. 194 Calanthe punctata Kurzweil 195 196 197 Calanthe rosea (Lindl.) Benth. Calanthe simplex Seidenf. Calanthe tricarinata Lindl. Laikam to Fengshuiling road, southeastern part of Myitkyina District, Kachin State Tanintharyi Kachin (Upper Burma) Chin, Kachin, Magway, Mandalay, Sagaing, Shan Near Htawgaw & Kangfang-Black Rock Road, Myitkyina, Kachin Kress et al. 2003 Kingdon-Ward 3048 (E!) Imschort s.n. (K!) Kingdon-Ward 9088 & 10222 (BM!) Ye Lwin Aung PT-7124 (PE!); s.coll. s.n. (E!); Kingdon-Ward 21351 (BM!) Forrest 26671 (K!) Lulay 9862 (K!) Xiaohua Jin et al. PT-2070 (PE!); Toppin 2736 (E!) Kermode 17210 (Holotype, AMES!; Isotype, K) Richard Abbott 27951 (NY!) Forrest 26655 & 26671 (E!) & (US) Kress et al. 2003 Kermode 17024 & 17325 (K!); s.coll. s.n. (E!); KingdonWard 20645 & 9456 (BM!) Kyungdaing-ywa-kyeni-in, MayMyo Maung Po Khant 16379 (K!) township, Mandalay Mandalay, Shan Kress et al. 2003 Listed as occurrence in Myanmar Kurzweil and Lwin 2014 collected place 6.44 km far from Ye Lwin Aung PT-7208 (PE!); Kang-fang, Myitkyina & Putao, Naw Mu Pa 17436 (K!) Kachin Yae Kan Taung, Dawei, Tanintharyi Saw Lwin et al. TNRO 153 (Holotype, SING; Isotype, Myanmar Floriculturist Association) Mon, Tanintharyi Kress et al. 2003 Haka District, Chin State Daun 101 (K!); Venning 1 (K!) Sunghku laung Kingdon-Ward 6817 (K!); s.coll. s.n. (E!) Checklist of Myanmar orchid flora No. Species 198 Calanthe trifida Tang & F.T. Wang 199 Calanthe triplicata (Willem.) Ames 200 201 202 Calanthe trulliformis King & Pantl. Calanthe vestita Lindl. Calanthe whiteana King & Pantl. 203 Callostylis bambusifolia (Lindl.) Chen & Wood Callostylis pulchella (Lindl.) S.C.Chen & Z.H.Tsi Callostylis rigida Blume 204 205 206 207 208 209 210 211 Cephalanthera damasonium (Mill.) Druce Cephalanthera pusilla (Hook. f.) Seidenf. Cephalantheropsis halconensis (Ames) S.S.Ying Cephalantheropsis longipes (Hook. f.) Ormerod Cephalantheropsis obcordata (Lindl.) Ormerod Ceratostylis himalaica Hook.f. 213 Ceratostylis pleurothallis (Parish & Rchb. f.) Seidenf. Ceratostylis radiata J.J. Sm. 214 Ceratostylis subulata Blume 215 216 Cheirostylis chinensis Rolfe Cheirostylis flabellata (A.Rich.) Wight Cheirostylis griffithii Lindl. 212 217 218 219 220 221 Cheirostylis montana Blume Cheirostylis pubescens Parish & Rchb. f. Cheirostylis pusilla Lindl. Cheirostylis spathulata J.J. Sm. 69 Local distribution Upper Chindwin, Sagaing MayMyo Plateau & Mt. Popa, Mandalay; Shan State Specimen citations Sulay 9045 (K!) Mg Sein 13507 (K!); forest botanist 1554 (K!); Hugh s.n. (K!); Kingdon-Ward 21144 (BM!); Khin Myo Htwe 28 (spirit collection-MBK) Listed as occurrence in Myanmar Kurzweil and Lwin 2014 Mon, Tanintharyi Kress et al. 2003 Chin; collected place 6.44 km from Naw Mu Pa 17417 (K!); Kangfang, Myitkyina, Kachin; Kingdon-ward 1661, 1734 (E!) Magway; Mandalay; Sagaing; Shan & (BM!); Farrer 1040 (E!) Putao, Kachin Xiaohua Jin et al. PT-5255 (PE!) Kachin, Mandalay, Tanintharyi Kress et al. 2003 Myitkyina, Kachin; MayMyo, Mandalay Kachin (Upper Burma); Kanpetlet, Chin Bago C.E. Parkinson 2455 (K!); A. Samuel 13528 (K!) Forrest 26554 (E!); Cooper 6122 & 6131 (E!) s.coll. s.n. (K!) Putao, Kachin Ye Lwin Aung PT-7131 (PE!) Nam Tamai valley, Putao, Kachin Kingdon-Ward 13443 (E!) & (BM!); Kate Armstrong 2347 (NY!) Griffith 5279 (K!); KingdonWard 21635 & 9141 (BM!) Xiaohua Jin et al. PT-5344 (PE!), Ye Lwin Aung PT-7148 (PE!); Forrest 27015 (K!) & (E!) s.n. (K!) Chin, Kachin, Magway, Mandalay, Sagaing, Shan Putao, Kachin; Htawgaw, Upper Myanmar Kayin, Tanintharyi Putao, Kachin Putao, Kachin Listed as occurrence in Myanmar Mon Taunggoo, Bago; Kachin Tanintharyi Mon, Tanintharyi Tanintharyi Mindat, Chin; Mt. Popa, Mandalay Ye Lwin Aung PT-7076 (PE!); Kurzweil & Lwin 2609 (SING, SING[spirit]) Kate Armstrong 2280 (NY!); Kurzweil & Lwin 2379 (SING [spirit]) Kurzweil and Lwin 2014 Parish 104 & 123 (K!) Parish 236 (K!); KingdonWard 487 (NY!) Kress et al. 2003 Kress et al. 2003 Kress et al. 2003 Kingdon-Ward 21776 (BM!); Tsujita et al. 036251 (spirit collection-TNS); Khin Myo Htwe 90 (spirit collectionTNS); Tetsuo Ohi-Toma 035000 (MBK) 70 Ye Lwin Aung et al. / PhytoKeys 138: 49–112 (2020) No. Species 222 Cheirostylis yunnanensis Lindl. 223 224 Chiloschista lunifera (Rchb. f.) J.J. Sm. Chiloschista parishii Seidenf. 225 Chiloschista usneoides (D. Don) Lindl. 226 Chrysoglossum assamicum Hook.f. 227 Chrysoglossum ornatum Blume 228 Cleisomeria lanatum (Lindl.) Lindl. ex G. Don Cleisomeria pilosulum (Gagnep.) Seidenf. & Garay Cleisostoma appendiculatum (Lindl.) Benth. & Hook. f. Cleisostoma arietinum (Rchb.f.) Garay Cleisostoma aspersum (Rchb. f.) Garay Cleisostoma birmanicum (Schltr.) Garay Cleisostoma duplicilobum (J.J. Sm.) Garay Cleisostoma filiforme (Lindl.) Garay 229 230 231 232 233 234 235 Local distribution Specimen citations Tamu-Chipwi New Road, Myitkyina, Kermode 16649 (K!) Kachin Kachin, Mandalay; Mawlamyine Forrest 12326 (E!); Parish (Moulmein), Mon; Tanintharyi 26237 (W!) Alaungdaw Kathapa National Park, Ye Lwin Aung PT-7398 (PE!) Sagaing Mt. Popa, Mandalay Tsujita et al. 036178 (spirit collection-TNS), Khin Myo Htwe 035053 (MBK) Putao, Kachin Xiaohua Jin et al. PT-ET-190 (PE!) Putao & Nogmung Township, Kachin Xiaohua Jin et al. PT-2047, State PT-2443 (PE!); Kingdon-Ward 6692 (K) Moulmein, Mon; Tanintharyi s.coll. s.n. (E!) Mt. Popa, Mandalay Mon, Tanintharyi Khin Myo Htwe 25, 39 (spirit collection-TNS) Kress et al. 2003 Listed as occurrence in Myanmar Kurzweil and Lwin 2014 Putao, Kachin; Alaungdaw Kathapa National Park, Sagaing Reported from Myanmar Ye Lwin Aung PT-7413, PT7041 (PE!) Kress et al. 2003 Falam, Chin Daun 74 (K) Falam, Chin; Kachin; PyinOoLwin (Maymyo), Mandalay; Tanintharyi A. Samuel 13509 (K!); Daun 40 (K!); C.T. Bogg B.G. 7 (K!); s.coll. s.n. (E!); McMillen 259 (US) Kurzweil and Lwin 2014 Cleisostoma fuerstenbergianum Kraenzl. Cleisostoma linearilobatum (Seidenf. & Smitinand) Garay Listed as occurrence in Myanmar 238 Cleisostoma parishii (Hook. f.) Garay Putao, Kachin; Mon; Tanintharyi 239 Cleisostoma racemiferum (Lindl.) Garay Cleisostoma rolfeanum (King & Pantl.) Garay Cleisostoma rostratum (Lindl.) Garay Mandalay; Kyaikkami(Amherst), Mon; Tanintharyi Taunggyi, Shan 236 237 240 241 242 243 244 245 246 Cleisostoma simondii (Gagnep.) Garay Cleisostoma subulatum Blume Cleisostoma williamsonii (Rchb. f.) Garay Coelogyne anceps Hook.f. Coelogyne assamica Linden & Rchb.f. Putao Township, Kachin State Putao, Kachin Kurzweil & Lwin 2684 (SING [spirit]), Kurzweil & Lwin 2772 (SING [spirit]) Xiaohua Jin et al. PT-2052 (PE!) R. C. Swinhoe R.123 & 49 (K!) R. C. Swinhoe R.124 (K!) Reported from Myanmar Ye Lwin Aung PT-7127 (PE!); McMillen 7 (US) Kress et al. 2003 Reported from Myanmar Mon, Tanintharyi Kress et al. 2003 Kress et al. 2003 Putao, Kachin; Mt. Victoria, Chin Ye Lwin Aung PT-7033, PT7153, PT-7575 (PE!) Xiaohua Jin et al. PT-5353 (PE!) Putao, Kachin Checklist of Myanmar orchid flora No. Species 247 Coelogyne barbata Griff. 248 Coelogyne brachyptera Rchb. f. 249 250 Coelogyne calcicola Kerr Coelogyne corymbosa Lindl. 251 252 Coelogyne cristata Lindl. Coelogyne ecarinata C. Schweinf. 253 Coelogyne fimbriata Lindl. 254 Coelogyne flaccida Lindl. 255 Coelogyne fuscescens Lindl. 256 259 Coelogyne gongshanensis H.Li ex S.C.Chen Coelogyne griffithii Hook.f. Coelogyne holochila P.F. Hunt & Summerh. Coelogyne huettneriana Rchb. f. 260 Coelogyne lentiginosa Lindl. 261 Coelogyne leucantha W.W. Sm. 262 Coelogyne longipes Hook. f. 263 264 Coelogyne magnifica Y.H.Tan, S.S.Zhou & B.Yang Coelogyne micrantha Lindl. 265 Coelogyne nervosa A.Rich. 257 258 71 Local distribution Specimen citations valley of the Saunghku & Nwai valley, Kingdon-Ward 7423 (K!); Putao, Kachin Kingdon-Ward 1941 (E!); Kate Armstrong 1914 (NY!) Mt. Victoria, Chin; Mandalay Ye Lwin Aung PT-7500, PT7501, PT-7502 (PE!); R.C.F. Swinhoe 37 (K!) Chin; Myitkyina, Kachin U Aung Din 2902 (K!) Xiaohua Jin et al. PT-2115, Putao & Myitkyina, Kachin; Paunglaung Creek, Nay Pyi Taw-Shan PT-2204, PT-2256, PT-2266 Yoma; Mt. Victoria & Falam, Chin; (PE!), Ye Lwin Aung PT-7390, Feng-Shiling camp, Upper Myanmar PT-7494, PT-7509, PT-7545 (PE!); Daun 22 (K!); Forrest 26558 (K!) & (US); Kermode 17357 (K!); Farrer 981 (E!); Kingdon-Ward 1569 & 1630 (E!) Shan, Tanintharyi Kress et al. 2003 Kachin Kingdon-Ward 434 (NY!) & (AMES!) Putao, Kachin; Paunglaung Creek, Xiaohua Jin et al. PT-ET 257, Nay Pyi Taw-Shan Yoma; Mandalay PT-5351 (PE!), Ye Lwin Aung PT-7047, PT-7059, PT-7070, PT-7214, PT-7217, PT-7389 (PE!); R.C.F. Swinhoe 90 (K!) Putao, Kachin; Upper Myanmar; Ye Lwin Aung PT-7169, PTTanintharyi 7204 (PE!); F.K.W. 6660 (K!); s.coll. s.n. (K!) Putao, Kachin; Kayin; Paunglaung Ye Lwin Aung PT-7024, PTCreek, Nay Pyi Taw-Shan Yoma; 7156, PT-7294, PT-7369, Mon; YePhyu, Tanintharyi PT-7370, PT-7393 (PE!); Generla Tylter B.G. 21 (K!); Parish 195 (K!) Kachin (Upper Burma) Forrest 26558 (E!) & (NY!); Farrer 889 & 1561 (E!) Seinghku-taung, Upper Myanmar Kingdon-Ward 6730 (K!) Mt. Victoria, Chin Ye Lwin Aung PT-7558 (PE!); Cuffe 1 (K!) Mandalay; Moulmein, Mon Swinhoe s.n. (K!); Parish 143 (K!) Mon; Tanintharyi; Mt. Popa, Robertson 137 (K!) Mandalay; Southern Shan State Chin; Kachin; Upper Myanmar; Forrest 27098 (K!) & (E!); Magway; Mandalay; Sagaing; Shan Kingdon-Ward 1669 (E!) Putao, Kachin; Inle lake, Taunggyi, Xiaohua Jin et al. PT-2110, Shan PT-5097 (PE!) Hponkanrazi Wildlife Sanctuary, Myanmar Exped. 2046 Putao Township, Kachin State (holotype, HITBC) Sumprabum & Putao, Kachin; Mt. Xiaohua Jin et al. PT-5273 Victoria, Chin; Mon; Tanintharyi (PE!), Ye Lwin Aung PT-7014, PT-7026, PT-7210, PT-7572 (PE!); Keenan et al. 3821 (K!) & (E!) Mt. Victoria, Chin Ye Lwin Aung PT-7493, PT7497, PT-7498 (PE!) 72 Ye Lwin Aung et al. / PhytoKeys 138: 49–112 (2020) No. Species 266 Coelogyne nitida Lindl. 267 Coelogyne occultata Hook. f. 268 Coelogyne ovalis Lindl. 269 Coelogyne parishii Hook. f. 270 271 Coelogyne picta Schltr. Coelogyne prolifera Lindl. 272 Coelogyne pulchella Rolfe 273 Coelogyne punctulata Lindl. 274 275 Coelogyne putaoensis X.H.Jin, L.A.Ye & Schuit. Coelogyne rigida Parish & Rchb. f. 276 Coelogyne sanderae Kranz. 277 278 Coelogyne schilleriana Rchb. f. Coelogyne schultesii S.K. Jain & S. Das 279 280 Coelogyne speciosa Lindl. Coelogyne stricta (D. Don) Schltr. 281 282 283 284 Coelogyne suaveolens (Lindl.) Coelogyne tenasserimensis Seidenf. Coelogyne testacea Lindl. Coelogyne tomentosa Lindl. Local distribution Specimen citations Seinghku taung, Myitkyina, Bhamo, Xiaohua Jin et al. PT-5272 Sumprabum, Putao, Kachin; Haka, (PE!), Ye Lwin Aung PT-7136, Chin; Taunggyi, Shan; Moulmein, PT-7362, PT-7364, PT-7591, Mon; YePhyu, Tanintharyi PT-7175 (PE!); Maung Wy 4991 (K!); F.K.W. 6799 (K!); C.W.D. Kermode 16683 & 17018 (K!); Venning 50 (K!); J. Keenan et al. 3208 (K!); Parish 150 (K!); Forrest 852 (E!), 26567 (E!) & (P!) Kachin (Upper Myanmar) Forrest 27060 (K!), (E!) & (NY!); Farrer 1088 (E!); Kingdon-Ward 1767 (E!) Paunglaung Creek, Nay Pyi Taw-Shan Ye Lwin Aung PT-7368, PTYoma; Kayin; Mon; Sagaing; Bago; 7381 (PE!) Mandalay Thaton, Mon; Thaungyin, Tanintharyi Baldwin 13568 (K!); Lace s.n. (E!) Chin, Kachin, Mandalay, Sagaing Kress et al. 2003 Ye Lwin Aung PT-7495, PTPutao & Myitkyina, Kachin; Mt. 7499, PT-7573, PT-7334, Victoria, Chin; Mandalay; YePhyu, PT-7082 (PE!); Su Lay 10028 Tanintharyi (K!); Swinhoe 103 (K!); Cooper 6083 (E!) Mulayit, East Dawna s.coll. 13527 (K!); s.coll. s.n. (K!) Myitkyina & Putao, Kachin; Mogok, Ye Lwin Aung PT-7130, PTMandalay 7029, PT-7036 (PE!); Mg Mya BG 15 (K!); Bogg 13513 (K!); Keenan et al. 3208 & 3079 (E!); Kingdon-Ward 17385 & 18463 (NY!) Hponkanrazi Wildlife Sanctuary, Xiaohua Jin et al. PT-2116 Putao Township, Kachin State (Holotype, PE!) Putao, Kachin; Mon; YePhyu, Ye Lwin Aung PT-7106, PTTanintharyi 7357 (PE!); Parish 42 (K!); Kingdon-Ward 20986 & 20650 (BM!) Chin; Putao, Kachin; Magway; Xiaohua Jin et al. PT-2546 Mandalay; Sagaing; Shan (PE!), Ye Lwin Aung PT-7018 (PE!) Reported from Myanmar Kress et al. 2003 Mt. Victoria, Kanpetlet, Chin; Ye Lwin Aung PT-7496, Myitkyina, Kachin PT-7523 (PE!); Dickason 8441 (K!); Kermode 17320 (K!); Kingdon-Ward s.n. (E!); Kingdon-Ward 21816 (BM!) Bago Kress et al. 2003 Chin, Kachin, Magway, Mandalay, s.coll. s.n. (K!) Sagaing, Shan Listed as occurrence in Myanmar Kurzweil and Lwin 2014 Mandalay R.C.F. Swinhoe 99 (K!) Reported from Myanmar Kress et al. 2003 Reported from Myanmar Kress et al. 2003 Checklist of Myanmar orchid flora No. Species 285 Coelogyne trinervis Lindl. 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 73 Local distribution Specimen citations Kyaingtong (Kengtun), Shan; YePhyu, Ye Lwin Aung PT-7359 (PE!); Tanintharyi; Dawna hills-Tenesserim A.F.G. Kerr s.n. (K!); Myron hills, Kyaikkami (Amherst) & Kimnach 57.268-1 (K!); Moulmein, Mon G.E.R. Cooper 1701 (K!); Bogg B.G. 19 (K!); Keenan et al. 5466 (E!) Coelogyne triplicatula Rchb.f. Dawna Hill, Kayin; Moulmein, Mon G.E.R. Cooper & C.E. Parkinson 6404 (K!); Parish 160 (K!) Coelogyne ustulata Parish & Rchb. f. Putao, Kachin; Mandalay; Mon; Ye Lwin Aung PT-7141 (PE!); Tanintharyi Parish 174 (K!); Daun 27 (K!) Coelogyne victoria-reginae Q.Liu Mt. Victoria, Chin Ye Lwin Aung PT-7546 (PE!); & S.S.Zhou Qiang Liu M17-18 (holotype, HITBC, isotypes, RAF) Coelogyne viscosa Rchb. f. Mt. Victoria, Chin; Mon; Tanintharyi R. Unwin 13521 (K!); Parish 252 (K!) Collabium chapaense (Gagnep.) Listed as occurrence in Myanmar Kurzweil and Lwin 2014 Seidenf. & Ormerod Collabium formosanum Hayata Putao, Kachin Ye Lwin Aung PT-7150 (PE!) Corymborkis veratrifolia Blume Kyaingtong (Kengtun), Shan Rock 1945 (E!) & (P!) & (US) Cremastra appendiculata (D. Don) Mt. Victoria, Chin; Putao, Kachin Xiaohua Jin et al. PT-ET Makino 1095 (PE!); K. Fujikawa et al. 089099 (MBK, spirit collection); N. Tanaka et al. 030828 (MBK) Crepidium acuminatum (D. Don) Putao, Kachin; Mindat, Chin; Mt. Xiaohua Jin et al. PT-2092 Szlach. Popa, Mandalay; Moulmein, Mon (PE!); Parish 147 (K!); Kingdon-Ward 22492 (BM!); Khin Myo Htwe 48 (spirit collection-TNS) Crepidium biauritum (Lindl.) Listed as occurrence in Myanmar Kurzweil and Lwin 2014 Szlach. Crepidium calophyllum (Rchb.f.) Putao, Kachin; Bago; Yangon; Xiaohua Jin et al. PT-6964 Szlach. Maymyo, Mandalay; Moulmein, Mon (PE!); A. Samuel 13677 (K!); Parish 191 (K!) Crepidium khasianum (Hook.f.) Chin Fujikawa et al. 053114 Szlach. (MBK), Yasuda 060072 (MBK), Tanaka & Yukawa 081194 (MBK), Ling Shein Man et al. 087417 (MBK), Mu Mu Aung et al. 092458 (MBK), Ling Shein Mang 093057 (MBK), Fujikawa et al. 094196 (MBK) Crepidium mackinnoniii (Duthie) Mindat, Chin Kingdon-Ward 22598 (BM!) Szlach. Crepidium polyodon (Hook.f.) Mon, Tanintharyi s.coll. 215 (K!) Szlach. Crepidium purpureum (Lindl.) Reported from Myanmar Kress et al. 2003 Szlach. Crepidium szemaoense (Tang & F.T. Chin Mu Mu Aung et al. 092359 Wang) Nuammee, Seelanan, Suddee (MBK) & H.A. Pedersen 74 Ye Lwin Aung et al. / PhytoKeys 138: 49–112 (2020) No. Species 302 Cryptochilus luteus Lindl. 303 Cryptochilus roseus (Lindl.) S.C.Chen & J.J.Wood 304 305 Cryptochilus sanguineus Wall. Cryptochilus strictus (Lindl.) Schuit., Y.P.Ng & H.A.Pedersen 306 Cryptostylis arachnites (Blume) Hassk. Cryptostylis carinata J.J.Sm. 307 308 Cylindrolobus biflorus (Griff.) Rauschert 309 Cylindrolobus clavicaulis (Lindl.) Rauschert 310 315 Cylindrolobus cristatus (Rolfe) S.C.Chen & J.J.Wood Cylindrolobus foetidus (Aver.) Schuit., Y.P.Ng & H.A.Pedersen Cylindrolobus glabriflorus X.H.Jin & J.D.Ya Cylindrolobus marginatus (Rolfe) S.C.Chen & J.J.Wood Cylindrolobus truncatus (Lindl.) Rauschert Cymbidium aloifolium (L.) Sw. 316 Cymbidium bicolor Lindl. 317 318 Cymbidium cochleare Lindl. Cymbidium crassifolium Wall. 319 Cymbidium cyperifolium Wall. 320 321 Cymbidium dayanum Rchb. f. Cymbidium devonianum Paxton 322 323 Cymbidium eburneum Lindl. Cymbidium elegans Lindl. 311 312 313 314 Local distribution Putao, Kachin Specimen citations Xiaohua Jin et al. PT-ET 543 & PT-2267 (PE!); s.coll.s.n. (E!); Kingdon-Ward 20984 (BM!) Putao, Kachin Xiaohua Jin et al. PT-5282 (PE!), Ye Lwin Aung PT-7170 (PE!) Recorded from Myanmar Kingdon-Ward 12850 (BM!) Putao, Kachin Kate Armstrong 1002 (NY!); Kingdon-Ward 9068 & 13524 (BM!) Putao, Kachin Ye Lwin Aung PT-7144, PT7196 (PE!) Putao, Kachin Ye Lwin Aung PT-7071, PT7100, PT-7113 (PE!) Putao, Kachin; YePhyu & Myeik Ye Lwin Aung PT-7328, PT(Mergui), Tanintharyi 7286, PT-7200 (PE!); Griffith 830 (K!) Putao, Kachin; Falam, Chin; Arakan Xiaohua Jin et al. PT-5266 Yoma, Rakhine (PE!); Ye Lwin Aung PT-7096 (PE!); R.C.F. Swinhoe 78 (K!); Daun 39 (K!) Putao, Kachin; Mt. Victoria, Chin; Ye Lwin Aung PT-7157, PTMoulmein, Mon 7503 (PE!); s.coll. s.n. (K!) Putao, Kachin Ye Lwin Aung PT-7094 (PE!) Hponkanrazi Wildlife Sanctuary, Putao Township, Kachin State Kyaikkahmi (Amherst), Mon Xiao-Hua Jin, Ji-Dong Ya 18HT1618 (holotype: KUN!) Lace 5644 (E!) Mon, Tanintharyi Kress et al. 2003 Mt. Victoria, Chin; YePhyu, Tanintharyi Ye Lwin Aung PT-7315, PT-7354, PT-7531 (PE!); Kingdon-Ward 22138 (BM!) Pantha drainage, Upper Chindwin; Rule s.n. (K!); Glin 5754 (K!); Haka & Falam, Chin Venning 48 (K!); Daun 66 (K!) Mt. Victoria, Chin Ye Lwin Aung PT-7532 (PE!) Putao, Kachin; Mt. Popa, Mandalay; Ye Lwin Aung PT-7401, PTAlaungdaw Kathapa National Park, 7438 (PE!); Ye Lwin Aung Sagaing; Taunggyi, Shan; YePhyu, PT-7295, PT-7297, PT-7445, Tanintharyi PT-7602, PT-7184 (PE!) Mt. Victoria, Chin; PyinOoLwin Xiaohua Jin et al. PT-5177 (Maymyo), Mandalay (PE!); R.C.F. Swinhoe 133 (K!) Recorded from Myanmar Rule s.n. (K!) Kachin Kingdon-Ward 20808 (BM!); McMillen 200 (US) Recorded from Myanmar Kress et al. 2003 Putao, Kachin; Falam & Haka, Chin Forrest 27694 (K!) & (E!); Daun 60 (K!); Venning 55 (K!); Kate Armstrong 2087 (NY!); Kingdon-Ward 21617 (BM!) Checklist of Myanmar orchid flora No. Species 324 Cymbidium ensifolium (L.) Sw. 325 326 327 328 Cymbidium erythraeum Lindl. Cymbidium faberi Rolfe Cymbidium finlaysonianum Lindl. Cymbidium hookerianum Rchb. f. 329 330 Cymbidium iridioides D. Don Cymbidium lancifolium W.J. Hook. 331 Cymbidium lowianum (Rchb. f.) Rchb. f. Cymbidium macrorhizon Lindl. 332 Local distribution Mt. Popa, Mandalay Specimen citations Khin Myo Htwe 118 (spirit collection-TNS), Tanaka et al. 036213 (MBK), Tsujita et al. 036209, 036214 (spirit collection-TNS) Chin, Kachin, Mandalay, Sagaing s.coll. s.n. (E!) Mt. Victoria, Chin Cooper 6017 (E!) Listed as occurrence in Myanmar Kurzweil and Lwin 2014 11.27 km from Kangfang, Myitkyina, Naw Mu Pa 15503 (K!); Kachin Kingdon-Ward 298 (NY!) Recorded from Myanmar s.coll. s.n. (K!) Putao, Kachin; Mt. Victoria, Chin; Ye Lwin Aung PT-7056, PTKalaw, Shan; Delu valley 7524 (PE!); Baldworth 13546 (K!); s.coll. 24 (K!); KingdonWard 8491 (K!); Venning 20 (K!); Kingdon-Ward 1933 (E!) Kachin, Yangon Kingdon-Ward 206 (E!) Chin; Shan; Mt. Popa, Mandalay 333 334 335 336 337 Cymbidium mastersii Griff. ex Lindl. Cymbidium parishii Rchb. f. Cymbidium sinense (Jacks.) Willd. Cymbidium suavissimum Sander Cymbidium tigrinum Parish ex Hook. 338 339 343 Cymbidium tracyanum Hort. Cymbidium wilsonii (Rolfe ex Cook) Rolfe Cypripedium guttatum Sw. Cypripedium himalaicum Rolfe Cypripedium lichiangense S.C. Chen & Cribb Cyrtosia javanica Blume 344 345 Dendrobium acerosum Lindl. Dendrobium acinaciforme Roxb. Tanintharyi Putao, Kachin 346 Dendrobium aduncum Wall. ex Lindl. 347 Dendrobium albosanguineum Lindl. & Paxton Dendrobium aloifolium (Blume) Rchb. f. Chin; Kachin; Magway; Maymyo, Mandalay; Alaungdaw Kathapa National Park, Sagaing; YePhyu, Tanintharyi Mon; Rakhine; Tanintharyi; Pyay (Prome), Bago Reported from Myanmar 340 341 342 348 75 Prain 12 (K!); Lace s.n. (E!); Kingdon-Ward 17499 (NY!); Kingdon-Ward 20799 & 22157 (BM!); Tanaka et al. 020495 (MBK), Khin Myo Htwe 58 (spirit collectionTNS) s.coll. s.n. (E!) s.coll. s.n. (K!) Keenan et al. 3301 (E!) s.coll. s.n. (K!) Parish 144 (K!); Bogg B.G. 29 (K!); Shwe Nyar Tha 5 (K!) Recorded from Myanmar Kayin, Shan, Tanintharyi Kachin Recorded from Myanmar Mulayit, Kayin; Dawna, Kyaikkami (Amherst) & Moulmein, Mon; Tanintharyi Chin, Kachin, Shan Kalewa, Sagaing Kress et al. 2003 Prazer s.n. (K!); s.coll. s.n. (E!) Adung valley, Putao, Kachin Adung valley, Putao, Kachin Recorded from Myanmar Kingdon-Ward 9677 (BM!) Kingdon-Ward 9680 (BM!) Kingdon-Ward 1643 (E!) Putao, Kachin Xiaohua Jin et al. PT-6334, PT-6262 (PE!); Myanmar Exped. M4012 (HITBC, RAF) Kress et al. 2003 Xiaohua Jin et al. PT-5348 (PE!) Ye Lwin Aung PT-7448, PT7273 (PE!); R.C.F. Swinhoe 132 (K!) s.coll. s.n. (K!); Whitin s.n. (US) Kress et al. 2003 76 Ye Lwin Aung et al. / PhytoKeys 138: 49–112 (2020) No. Species 349 Dendrobium amoenum Wall. 350 Dendrobium amplum Lindl. 351 Dendrobium anceps Sw. 352 Dendrobium angulatum Lindl. 353 Dendrobium angustifolium (Blume) Lindl. Dendrobium aphrodite Rchb. f. 354 355 Dendrobium aphyllum (Roxb.) Fischer 356 357 358 Dendrobium appendiculatum (Blume) Lindl. Dendrobium attenuatum Lindl. Dendrobium bellatulum Rolfe 359 Dendrobium bensoniae Rchb. f. 360 Dendrobium bicameratum Lindl. 361 Dendrobium brymerianum Rchb. f. 362 363 364 Dendrobium calcariferum Carr Dendrobium calothyrsos Schltr. Dendrobium capillipes Rchb. f. 365 Dendrobium cariniferum Rchb. f. 366 Dendrobium chiengmaiense Schuit. & Peter B.Adams Local distribution Alaungdaw Kathapa National Park, Sagaing Putao, Kachin Specimen citations Ye Lwin Aung PT-7405 (PE!); McMillen 197 (US) Ye Lwin Aung PT-7038 (PE!); Kingdon-Ward 21420 (BM!) Mandalay; Shan; YePhyu, Tanintharyi Ye Lwin Aung PT-7285, PT7287, PT-7342 (PE!) YePhyu, Tanintharyi; Eastern Ye Lwin Aung PT-7327 (PE!); Tenasserim A.F.G. Kerr 01001 (K!) & (P!); Peche 612 (BM!) Putao, Kachin; Tanintharyi Ye Lwin Aung PT-7132 (PE!) PyinOoLwin (Maymyo), Mandalay; Ellison s.n. (K!) Mon; Tanintharyi; Mt. Popa & Pyin Oo Lwin Daun 15 (K!); Glin 5821 (K!); (Maymyo), Mandalay; foot of Lace s.n. (E!); Kingdon-Ward YayTheiChin Hill, Upper Chindwin; 21824 (BM!); Lobb 9 (BM!); Khin Myo Htwe 8 (spirit Falam & Mindat, Chin; Mawlamyine, Mon collection-TNS), Khin Myo Htwe 27 (spirit collectionTNS), Khin Myo Htwe 32 (spirit collection-TNS), Khin Myo Htwe 035054 (MBK) Reported from Myanmar Kress et al. 2003 Putao, Kachin Mt. Victoria, Chin; Taunggyi & Kalaw, Shan Ye Lwin Aung PT-7025 (PE!) Ye Lwin Aung PT-7527, PT-7528, PT-7584 (PE!); Baldworth 13545 (K!) Mt. Victoria, Chin; Bago; Rakhine; Ye Lwin Aung PT-7555, Tanintharyi; Yangon; Mt. Popa & PT-7563 (PE!); A. Samuel Maymyo, Mandalay 13575 (K!); s.coll. s.n. (K!); Khin Myo Htwe 35 (spirit collection-TNS), Tanaka et al. 036101, 036103 (spirit collection-MBK, TNS), Tanaka et al. 036193 (spirit collection-MBK, TNS), Mt. Victoria, Chin; Mandalay; Ye Lwin Aung PT-7482, PTYePhyu, Tanintharyi 7241 (PE!); R.C.F. Swinhoe 55 & R 126 (K!) Chin; Putao, Kachin; Magway; Xiaohua Jin et al. PT-6727 Mandalay; Sagaing; Shan (PE!); s.coll. s.n. (K!); Kingdon-Ward 20759 (BM!) Putao, Kachin Ye Lwin Aung PT-7087 (PE!) Reported from Myanmar Kress et al. 2003 Haka, Chin; Magway; Mon; Shan; R.C.F. Swinhoe 43 (K!); Tanintharyi; Mt. Popa, Mandalay Venning 61 (K!); McMillen 203 (US); Khin Myo Htwe 57 (spirit collection-TNS) Chin; Kachin; Mt. Popa, Mandalay; Ye Lwin Aung PT-7404, PTAlaungdaw Kathapa National Park, 7595 (PE!); Kingdon-Ward Sagaing; Taunggyi, Shan s.n. (E!); Khin Myo Htwe 95 (spirit collection-TNS), Tanaka et al. 036151 (MBK) Reported from Myanmar Kress et al. 2003 Checklist of Myanmar orchid flora No. Species 367 Dendrobium chrysanthum Lindl. 368 Dendrobium chryseum Rolfe 369 Dendrobium chrysocrepis Parish & Rchb. f. ex Hook. f. Dendrobium chrysotoxum Lindl. 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 Dendrobium comatum (Blume) Lindl. Dendrobium compactum Rolfe ex W. Hackett Dendrobium conspicuum Bakh.f. Dendrobium convexum (Blume) Lindl. Dendrobium crepidatum Lindl. 77 Local distribution Specimen citations Chin; Putao, Kachin; Mt. Popa, Ye Lwin Aung PT-7105 (PE!); Mandalay; Taunggyi, Shan F.G. Dickason 8279 (K!) Mt. Popa & PyinOoLwin (MayMyo), Ye Lwin Aung PT-7423, PT7274 (PE!); Cooper 6084 Mandalay; Alaungdaw Kathapa (E!); Khin Myo Htwe 5 (spirit National Park, Sagaing; YePhyu, collection-TNS); Maung Sin Tanintharyi 13538 (K!) Mon; YePhyu, Tanintharyi Ye Lwin Aung PT-7310 (PE!) Mt. Victoria, Chin; Kachin; Magway; Ye Lwin Aung PT-7248, PT7450, PT-7486, PT-7492, Mt. Popa, Mandalay; Alaungdaw PT-7556, PT-7576, PT-7254 Kathapa National Park, Sagaing; (PE!); Kingdon-Ward 21807 Shan; Yangon (BM!); McMillen 247 (US); Harrison s.n. (US); Khin Myo Htwe 2 (spirit collectionTNS), Tanaka et al. 036164 (MBK) Reported from Myanmar Kress et al. 2003 PyinOoLwin (MayMyo), Mandalay Tanintharyi Reported from Myanmar Chin, Kachin, Mandalay, Sagaing, Shan, Mt. Popa of Madalay Region Lace 6282 (K!) & (E!); Swinhoe 70 (K!); Samuel 13515 (K!); Kress et al. 2003 Kress et al. 2003 Ye Lwin Aung PT-7366, PT7377, PT-7380, PT-7382, PT7387, PT-7463, PT-7488, PT7580 (PE!); s.coll. s.n. (NY!); Tanaka et al. 036184, 036186 (MBK), Khin Myo Htwe 19 (spirit collection-TNS) Dendrobium cruentum Lindl. Tanintharyi Kress et al. 2003 Dendrobium crumenatum Sw. Tanintharyi Griffith 5149 (P!); s.coll. s.n. (NY!) Dendrobium crystallinum Rchb. f. Mt. Popa, Mandalay; Mon; Rakhine; Abdul Khalil s.n. (BM!) & Shan; Tanintharyi (L!) & (P!); Khin Myo Htwe 3 (spirit collection-TNS), Khin Myo Htwe 21 (spirit collection-TNS) Dendrobium cumulatum Lindl. Chin; Kachin; Mandalay; Sagaing; Keenan et al. 1620 (E!) Dawei (Tavoy), Tanintharyi Dendrobium curviflorum Rolfe Putao, Kachin; PyinOoLwin Qiang Liu 440 (HITBC!); (MayMyo), Mandalay Swinhoe B.G. 2 (K!); Mg Sein 13503 (K!) Dendrobium cuspidatum Lindl. Dawei (Tavoy), Tanintharyi Swinhoe 64 (K!); Keenan et al. 5309 (E!); Lobb 406 (BM!) Dendrobium dantaniense Guillaumin Mt. Popa, Mandalay Khin Myo Htwe 53, 54 (spirit collection-TNS), Tanaka et al. 036154 (MBK) Dendrobium delacourii Guill. Mt. Popa & PyinOoLwin (Maymyo), Lace 6262 & 6357 (E!); Mandalay; Thayet, Magway; Mon; Buchanan-Hamilton s.n. Rakhine; Tanintharyi (BM!); Khin Myo Htwe 36 (spirit collection-TNS) Dendrobium denneanum Kerr Recorded from Myanmar F.G. Dickason 8365 (K!) 78 Ye Lwin Aung et al. / PhytoKeys 138: 49–112 (2020) No. Species 385 Dendrobium densiflorum Lindl. ex Wall. 386 Dendrobium denudans D. Don 387 Dendrobium devonianum Paxton 388 Dendrobium dickasonii L.O. Williams 389 Dendrobium dixanthum Rchb. f. 390 Dendrobium draconis Rchb. f. 391 392 Dendrobium ellipsophyllum Tang & F.T. Wang Dendrobium eriiflorum Griff. 393 Dendrobium falconeri Hook. 394 395 Dendrobium farmeri Paxton Dendrobium fimbriatum Hook. 396 Dendrobium findlayanum Parish & Rchb. f. Dendrobium finetianum Schltr. 397 399 400 Dendrobium formosum Roxb. ex Lindl. Dendrobium fugax Rchb.f. Dendrobium fuscescens Griff. 401 Dendrobium fytchianum Bateman 402 Dendrobium gibsonii Paxt. 398 Local distribution Specimen citations Paunglaung Creek, Nay Pyi Taw-Shan Ye Lwin Aung PT-7367, PTYoma; Alaungdaw Kathapa National 7451, PT-7590, PT-7272 Park, Sagaing; Taunggyi, Shan; (PE!); Parkinson 8722 (RAF!); YePhyu, Tanintharyi; Bamaw, Kachin; U Tha Hla 1939 (RAF!) Pyin Oo Lwin, Mandalay Mt. Victoria, Chin; Kachin; Ye Lwin Aung PT-7402, Alaungdaw Kathapa National Park, PT-7409, PT-7476 (PE!); Sagaing Kingdon-Ward 108 (NY!) Chin; Kachin; Kayin; Kadaik, Thaton, Glin 6575 (RAF!); Sou Po Mon; Homalin stream, Upper Chin 5842 (RAF!); AR 492 Chindwin & Katha District, Sagaing; (RAF!) Tanintharyi Mt. Victoria, Haka & Falam, Chin; Ye Lwin Aung PT-7474, PTTaunggyi, Shan; YePhyu, Tanintharyi; 7585, PT-7261 (PE!); Daun Madalay 21 (K!); R.C.F. Swinhoe 36 (K!); Venning 60 (K!); Hildebrand D (K!); Dickason 8756 & 7779 (AMES!); Kingdon-Ward 22222 (BM!); Kingdon-Ward 22244 (BM!) Bhamo, Kachin; Mon; Tanintharyi Bogg 13534 (K!); Swinhoe R 128 (K!) Mt. Victoria, Chin; Mt. Popa, Ye Lwin Aung PT-7394, PTMandalay; Alaungdaw Kathapa 7561 (PE!), Khin Myo Htwe National Park, Sagaing 34 (spirit collection-TNS) Mandalay R.C.F. Swinhoe 60 (K!); s.coll. s.n. (K!) Putao, Kachin; Chin; Paunglaung Xiaohua Jin et al. PT-5288 Creek, Nay Pyi Taw-Shan Yoma; (PE!), Ye Lwin Aung PT-7378 Mandalay; Myaukhlaing reserve, (PE!); Swinhoe 84 (K!); Po Insein, Yangon Khant 696 (RAF!); Mokim s.n. (BM!) Chin; Kachin; Sagaing; Taunggyi, Ye Lwin Aung PT-7587 (PE!); Shan s.coll.s.n. (E!); Kingdon-Ward 20951 (BM!) Mon, Tanintharyi Kress et al. 2003 Chin; valley of the Seinghku, Putao, Xiaohua Jin et al. PT-2019 Kachin; Kayah; Mon; Rakhine; (PE!); Ye Lwin Aung PT-7317, Sagaing; YePhyu, Tanintharyi; Yangon PT-7318 (PE!); Kingdon-Ward 7256 (K!) Shan, Yangon Parish 192 (K!); Hallowell s.n. (US) Putao, Kachin Ye Lwin Aung PT-7119, PT7182, PT-7201 (PE!) Chin, Kachin, Bago, Mon, Rakhine, Wallace 136 (BM!); s.coll. s.n. Sagaing, Tanintharyi, Yangon (K!); Mokim S 634 (L!) Listed as occurrence in Myanmar Kurzweil and Lwin 2014 valley of the Seinghku, Putao, Kachin Kingdon-Ward 7623 (K!); Kate Armstrong 2130 (NY!) Mon; Nothern Bago (Pegu); Rakhine; C.W.D. Kermode 16760 (K!); Tanintharyi; Nyanglepin reserve, Ba Pe 340 (RAF!) Taikkyi range, Insein, Yangon Putao, Kachin; Shan; Bago; Xiaohua Jin et al. PT-2085 Mandalay; Myeik (Mergui), (PE!); Griffith 1040 (K!); Tanintharyi Kaulback 123, 124 & 387 (BM!); Kingdon-Ward 21205 (BM!) Checklist of Myanmar orchid flora No. Species 403 Dendrobium grande Hook.f. 404 Dendrobium gratiosissimum Rchb. f. 405 Dendrobium griffithianum Lindl. 406 407 Dendrobium hancockii Rolfe Dendrobium harveyanum Rchb. f. 408 Dendrobium hendersonii A.D. Hawkes & A.H. Heller Dendrobium hercoglossum Rchb.f. Dendrobium heterocarpum Wall. 409 410 411 412 413 Dendrobium hirtulum Rolfe Dendrobium hkinhumense Ormerod & Kumar Dendrobium hookerianum Lindl. 414 415 Dendrobium hymenanthum Rchb. f. Dendrobium incurvum Lindl. 416 Dendrobium indivisum (Blume) Miq. Dendrobium indragiriense Schltr. Dendrobium infundibulum Lindl. 417 418 419 420 421 422 423 424 425 426 427 Local distribution Tanintharyi Mon, Tanintharyi YePhyu, Tanintharyi Recorded from Myanmar Mt. Victoria, Chin; Mt. Popa, Mandalay Reported from Myanmar Listed as occurrence in Myanmar Chin; Kachin; Magway; Mt. Popa, Mandalay; Sagaing; Shan Haka, Chin Kachin Mindat, Chin; Putao, Kachin Reported from Myanmar Putao, Kachin; Shan; YePhyu, Tanintharyi 79 Specimen citations Helfer 5065 (K!) R.C.F. Swinhoe R 107 (K!) Ye Lwin Aung PT-7249, PT7321 (PE!); Griffith 1038 (P!) Forrest 29786 (BM!) Ye Lwin Aung PT-7456, PT7457, PT-7483, PT-7487 (PE!) Kress et al. 2003 Kurzweil and Lwin 2014 Mokim s.n. (P!); Khin Myo Htwe 75 (spirit collectionMBK) Daun 26 (K!); s.coll. s.n. (K!) Kingdon-Ward 21198 (BM!) Xiaohua Jin et al. PT-ET 487, PT-ET 669 (PE!); Farrer 1089 (RAF!); Kingdon-Ward 1776 (E!); Kingdon-Ward 21777 & 21333 (BM!) Kress et al. 2003 Ye Lwin Aung PT-7280, PT7021, PT-7030, PT-7054, PT-7060, PT-7163, PT-7277 (PE!); Parish 176 (K!) Kerr 1002 (P!) Kayin, Mon, Rakhine, Sagaing, Tanintharyi YePhyu, Tanintharyi Ye Lwin Aung PT-7331 (PE!) Mt. Victoria, Falam & Haka, Chin; Xiaohua Jin et al. PT-5169 Kayah; Kayin; Magway; Mandalay; (PE!); J.H. Lace 6294 (K!); Kyaikkami(Amherst), Mon; Rakhine; Daun 9 (K!); Po Khant 2408 Shan (RAF!); Unwin 3002 & 3077 (E!); Kingdon-Ward 21999 (BM!) Dendrobium jenkinsii Wall. ex Lindl. Alaungdaw Kathapa National Park, Ye Lwin Aung PT-7396, Sagaing; PyinOoLwin (Maymyo), PT-7403, PT-7298 (PE!); A. Mandalay; YePhyu, Tanintharyi Samuel 13535 (K!) Dendrobium kentrophyllum Hook. f. Tanintharyi Kress et al. 2003 Dendrobium koyamae Nb. Mt. Victoria, Chin Nobuyuki Tanaka et al. Tanaka, T. Yuakawa & J. Murata 20040042 (holotype-MBK, spirit collection) Dendrobium lamellatum (Blume) Mon, Tanintharyi Kress et al. 2003 Lindl. Dendrobium lasioglossum Rchb. f. Reported from Myanmar Kress et al. 2003 Dendrobium laterale L.O. Haka, Chin Venning 7 (K!); Dickason Williams 7359 & 7378 (AMES!) Dendrobium leucochlorum Rchb. Mon, Tanintharyi Kress et al. 2003 f. Dendrobium lindleyi Steud. Kachin; Kayin; Mandalay; Mon; Ba Pe 9391 (RAF!); Griffith Rakhine; Sagaing; Shan; Tanintharyi; 1014 (P!) Yangon; Tamon reserve, Taunggoo, Bago Dendrobium lituiflorum Lindl. Reported from Myanmar Kress et al. 2003 80 Ye Lwin Aung et al. / PhytoKeys 138: 49–112 (2020) No. Species 428 Dendrobium longicornu Lindl. Local distribution Specimen citations Putao, Kachin; Mt. Victoria & Haka, Xiaohua Jin et al. PT-ET 801, Chin; Paunglaung Creek, Nay Pyi PT-2102, PT-2402, PT-5196 Taw-Shan Yoma; YePhyu, Tanintharyi (PE!), Ye Lwin Aung PT-7031, PT-7195, PT-7339, PT-7363, PT-7376, PT-7562 (PE!); Venning 2 (K!); KingdonWard 5505 & 3531 (E!); Kate Armstrong 1911 (NY!) Chin, Mon, Tanintharyi s.coll. s.n. (K!) Putao, Kachin Xiaohua Jin et al. PT-2499 (PE!) Kyaukpadaung Township, Mandalay Saw Lwin MPO 050 (SING, Region SING [spirit]) Mandalay R.C.F. Swinhoe 3 (K!) Reported from Myanmar Kress et al. 2003 429 430 Dendrobium luteolum Bateman Dendrobium macraei Lindl. 431 Dendrobium macrostachyum Lindl. 432 433 434 Dendrobium mannii Ridl. Dendrobium marmoratum Rchb. f. Dendrobium minutiflorum Kraenzl. 435 Dendrobium moniliforme (L.) Sw. Mt. Victoria, Chin; LukpyiKyanyingu Rd, Myitkyina & Putao, Kachin 436 Dendrobium monticola P.F.Hunt & Summerh. Dendrobium moschatum (Buch.Ham.) Sw. Putao, Kachin 437 Putao, Kachin 438 Dendrobium nathanielis Rchb. f. Ayeyarwaddy; Bago; Chin; Kayin; Mt. Popa, Mandalay; Magway; Mon; Rakhine; Shan; Tanintharyi; Yangon Mon, Shan, Tanintharyi 439 Dendrobium naungmungense Q.Liu & X.H.Jin Naungmung Township, Putao County, Kachin State 440 Dendrobium nobile Lindl. Chin; Putao, Kachin; Sagaing 441 Dendrobium numaldeorii C. Deori, Hynn. & Phukan Dendrobium ochreatum Lindl. 442 443 444 445 446 447 Dendrobium pachyglossum Parish & Rchb. f. Dendrobium pachyphyllum (Kuntze) Bakh. f. Dendrobium palpebrae Lindl. Dendrobium panduriferum Hook. f. Dendrobium parcum Rchb. f. Chipwi Township, Kachin State Mt. Victoria & Falam, Chin; Mt. Popa, Mandalay Mon, Tanintharyi, Mandalay Ayeyarwaddy, Bago, Kayin, Mon, Rakhine, Tanintharyi, Yangon Moulmein, Mon Bago, Yangon Chin; Kachin; Magway; Mt. Popa, Mandalay; Paunglaung Creek, Nay Pyi Taw-Shan Yoma; Sagaing; Shan; Tanintharyi Xiaohua Jin et al. PT-5287, PT-5352 (PE!) Ye Lwin Aung PT-7544 (PE!); Xiaohua Jin et al. PT-6142 (PE!); C.W.D. Kermode 17123 (K!); Farrer 853 (E!); Kingdon-Ward 22139 (BM!) Qiang Liu 307 (HITBC!) Buchanan-Hamilton s.n. (BM!); Tanaka et al. 036153 (MBK) Maung Hla 3672 (K!); Kurz 360 (BM!) Xiaohua Jin et al. PT-ET 133, PT-ET 1232 (PE!); Qiang Liu 430 (Holotype, HITBC) Ye Lwin Aung PT-7091 (PE!); Forrest 26605 (E!) & (US); Kingdon-Ward 1553 (E!); McMillen 204 (US) Kingdon-Ward 108 (AMES, NY) Ye Lwin Aung PT-7455, PT7473, PT-7481, PT-7484, PT-7491 (PE!), Tanaka et al. 036156 (MBK); Daun 23 (K!) R.C.F. Swinhoe 63 (K!) Kress et al. 2003 s.coll. s.n. (K!) Kress et al. 2003 Ye Lwin Aung PT-7388 (PE!); Swinhoe 92 (K!); Forrest 12608 (E!); Khin Myo Htwe 18 (spirit collection-TNS), Khin Myo Htwe 035056 (MBK); Checklist of Myanmar orchid flora No. Species 448 Dendrobium parishii Rchb. f. 449 450 451 452 Dendrobium pedilochilum Schltr. Dendrobium peguanum Lindl. Dendrobium pendulum Roxb. Dendrobium plicatile Lindl. 453 Dendrobium polyanthum Lindl. 454 Dendrobium porphyrochilum Lindl. 455 Dendrobium praecinctum Rchb.f. 456 Dendrobium praetermissum Seidenf. Dendrobium pulchellum Roxb. ex Lindl. 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 81 Local distribution Specimen citations Mt. Victoria, Chin; Kachin; Mt. Ye Lwin Aung PT-7447, PTPopa, Mandalay; Alaungdaw Kathapa 7554, PT-7540 (PE!), Khin National Park, Sagaing; Shan; Mon; Myo Htwe 7 (spirit collectionTanintharyi TNS), Khin Myo Htwe 30 (spirit collection-TNS) Reported from Myanmar Kress et al. 2003 Bago, Mon, Tanintharyi Beddome 8183 (BM!) Chin, Mon, Rakhine, Shan Kress et al. 2003 Mt. Victoria, Chin; Mandalay; Ye Lwin Aung PT-7449, PTAlaungdaw Kathapa National Park, 7564 (PE!) Sagaing; Tanintharyi Mt. Popa, Mandalay; Taunggyi, Shan Ye Lwin Aung PT-7586 (PE!); Kingdon-Ward 22062 (BM!); McMillen 198 (US); Khin Myo Htwe 49 (spirit collection-TNS), Khin Myo Htwe 94 (spirit collectionMBK, TNS) Kalaw & Taunggyi, Shan Xiaohua Jin et al. PT-5100 (PE!); Ye Lwin Aung PT-7588, PT-7589 (PE!); Kingdon-Ward 20985 & 22670 (BM!) Ho Pone Township, Shan State Xiaohua Jin et al. PT-6738 (PE!); Saw Lwin SL 49 (herbarium of Myanmar Floriculturist Association) Listed as occurrence in Myanmar Kurzweil and Lwin 2014 Bago; Mt. Popa, Mandalay; Rakhine; Mokim s.n. (BM!); Khin Myo Tanintharyi; Yangon Htwe 11 (spirit collectionTNS), Tanaka 036159 (MBK) Dendrobium pycnostachyum Lindl. Tanintharyi Beddome 8124 (BM!) Dendrobium revolutum Lindl. Recorded from Myanmar Peche s.n. (BM!) Dendrobium rhodocentrum Rchb. Reported from Myanmar Kress et al. 2003 f. Dendrobium rotundatum (Lindl.) Chin; Myitkyina, Kachin Kermode 17164 (K!); Hook.f. Kingdon-Ward 20686 (BM!) Dendrobium ruckeri Lindl. Nogmung, Kachin Kingdon-Ward 6645 (K!); Dendrobium salaccense (Blume) Reported from Myanmar Kress et al. 2003 Lindl. Dendrobium sarmentosum Rolfe Recorded from Myanmar s.coll. s.n. (K!) Dendrobium scabrilingue Lindl. Bago; Thaton & Moulmein, Mon; Glin 6440 (K!); s.coll. s.n. Tanintharyi; Ywathit Salween valley, (K!); Parish 134 (K!) Karmai Dendrobium secundum (Blume) Rakhine; Thaungyin, Tanintharyi; Bogg 13536 (K!); R.C.F. Lindl. Yangon; Mandalay Swinhoe 26 (K!) Dendrobium senile Parish ex Rchb. f. Mon, Sagaing s.coll. s.n. (K!) Dendrobium signatum Rchb. f. Southern Shan W. A. Robertson 272 (K!); Hildebrand A, B & C (K!); s.coll. s.n. (K!) Dendrobium spatella Rchb. f. Chin; Kachin; Magway; Mandalay; Ye Lwin Aung PT-7417, PTAlaungdaw Kathapa National Park, 7418 (PE!); L. T. Bogg 13553 Sagaing; Shan; Thaton, Mon (K!) Dendrobium strongylanthum Rchb. f. Recorded from Myanmar Kingdon-Ward 22843 (BM!) Dendrobium stuposum Lindl. Moulmein, Mon; Tanintharyi Parish 358 (K!) 82 Ye Lwin Aung et al. / PhytoKeys 138: 49–112 (2020) No. Species 472 Dendrobium sulcatum Lindl. 473 Dendrobium sutepense Rolfe ex Downie 474 Dendrobium terminale Parish & Rchb. f. 475 Dendrobium thyrsiflorum Rchb. f. 476 Dendrobium tortile Lindl. 477 Dendrobium transparens Wall. 478 Dendrobium treutleri (Hook.f.) Schuit. & Adams Dendrobium trigonopus Rchb. f. Dendrobium unicum Seidenf. Dendrobium venustum Teijsm. & Binn. 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 Dendrobium virgineum Rchb. f. Dendrobium wardianum Warner Dendrobium wattii (Hook. f.) Rchb. f. Dendrobium wightii A.D. Hawkes & A.H. Heller Dendrobium williamsonii Day & Rchb. f. Dendrobium xanthophlebium Lindl. Dendrochilum longifolium Rchb. f. Dendrochilum pallidiflavens Blume Dendrolirium laniceps (Rchb.f.) Schuit., Y.P.Ng & H.A.Pedersen Dendrolirium lasiopetalum (Willd.) S.C.Chen & J.J.Wood Local distribution Mt. Victoria, Chin Kalaw, Shan Specimen citations Ye Lwin Aung PT-7485 (PE!) Xiaohua Jin et al. PT-5098 (PE!) Mandalay; Alaungdaw Kathapa Ye Lwin Aung PT-7323, PTNational Park, Sagaing; Ye Phyu & 7421 (PE!); Keenan et al. 5467 Dawei (Tavoy), Tanintharyi (K!); Kerr 1006 (P!) Mt. Popa, Mandalay Xiaohua Jin et al. PT-5347 (PE!), Khin Myo Htwe 103 (spirit collection-MBK, TNS) YePhyu, Tanintharyi Ye Lwin Aung PT-7319 (PE!); Helfer 5050 (K!) Bago; Mt. Victoria, Chin; Putao, Xiaohua Jin et al. PT-2458 Kachin; PyinOoLwin (Maymyo), (PE!), Ye Lwin Aung PT-7596 Mandalay; Taunggyi, Shan (PE!); A. Samuel 13567 (K!); Daun 8 (K!); Cooper 6090 (E!) Putao, Kachin Kate Armstrong 1918 (NY!); Kingdon-Ward 21446 (BM!) Recorded from Myanmar s.coll. s.n. (K!) Listed as occurrence in Myanmar Kurzweil and Lwin 2014 Mt. Popa & PyinOoLwin (Maymyo), A. Samuel 13562 (K!); J.H. Mandalay Lace 6262, 6357 (K!); Tanaka et al. 036163 (MBK) Reported from Myanmar Kress et al. 2003 Chin, Rakhine Kingdon-Ward 21778 (BM!) Mt. Victoria, Chin Ye Lwin Aung PT-7475 (PE!); Kimnach B - 16 (US) Sagaing Kress et al. 2003 Black Rock, Myitkyina & Putao, Kachin; Pyin Oo Lwin, Mandalay; Upper Myanmar Mon, Tanintharyi Kachin, “Birma: Bhamo” Tanintharyi Kyaikkahmi (Amherst), Mon Ye Lwin Aung PT-7135, PT7028, PT-7133, PT-7137, PT-7155 (PE!); Forrest 26608 (K!), (E!) & (US); Kermode 17330 (K!); Kingdon-Ward 6659 (K!); Tha Hla 1942 (RAF!); Kingdon-Ward 20771 (BM!) Kress et al. 2003 Rchb.f. 13763 W Kress et al. 2003 Lace 5594 (E!) Putao, Kachin; Mt. Popa, Mandalay; Xiaohua Jin et al. PT-5277 Alaungdaw Kathapa National Park, (PE!), Ye Lwin Aung PT-7098, Sagaing; YePhyu, Tanintharyi PT-7229, PT-7230, PT-7092, PT-7185, PT-7234, PT-7243, PT-7332, PT-7442, PT-7454 (PE!) Dendrolirium tomentosum (J.Koenig) Bago, Tanintharyi Abdul Huk s.n. (BM!) S.C.Chen & J.J.Wood Dickasonia vernicosa L.O.Williams Kyaukkut Chaung, Falam & Haka, Venning 4 & 5 (K!); F.G. Chin Dickason 7377 & 7524 (K!), 8576 (K!) & (AMES!) & (US); Daun 13 (K!) Didymoplexis pallens Griff. Mandalay; YePhyu, Tanintharyi Ye Lwin Aung PT-7338 (PE!) Checklist of Myanmar orchid flora No. Species 495 Dienia cylindrostachya Lindl. 496 Dienia ophrydis (Koenig) Seidenf. 497 Diglyphosa latifolia Blume 498 Dilochia subsessilis (Rolfe) S. Thomas Diplomeris hirsuta (Lindl.) Lindl. Diplomeris pulchella D. Don 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 Local distribution Chin Mt. Popa, Mandalay; NyaungShwe, Shan Putao, Kachin Recorded from Myanmar Putao, Kachin Kachin; Mandalay; Upper Chidwin, Sagaing 83 Specimen citations Kingdon-Ward 9758a (BM!); Matsumoto 053614 (MBK), Mu Mu Aung et al. 092798 (MBK), Fujikawa et al. 094517 (MBK), Fujikawa et al. 094853 (MBK), Thet Yu Nwe TY 61 (RAF) Xiaohua Jin et al. PT-5080 (PE!); Kingdon-Ward 12791 (BM!); Tanaka et al. 036192 (TNS); Khin Myo Htwe 43 (spirit collection-TNS) Xiaohua Jin et al. PT-5236 (PE!) s.coll. s.n. (K!) Kingdon-Ward 13089 (BM!) Boxall s.n. (K!); Toppin 4226 (E!); Rogers 1024 (E!); Kingdon-Ward 1926 (E!); Keenan et al. 3984 (E!); Kingdon-Ward 9030 (BM!) Diploprora championii Hook. f. Putao, Kachin; Tanintharyi Xiaohua Jin et al. PT-ET 1323, PT-ET 1379 (PE!) Diploprora truncata Rolfe ex Downie Chin Srisanga et al. 97741 (US) Disperis neilgherrensis Wight Ywangan, Taunggyi, Shan Kang et al. 2019 [photographic record from Shan State] Epipactis flava Seidenf. Pyin Oo Lwin (Maymyo), Mandalay; H. Collett s.n. (K!); F.G. Muse, Shan Dickason 6122 (Holotype: AMES) Epipactis helleborine (L.) Crantz Mandalay Kress et al. 2003 Epipactis mairei Schltr. Upper Myanmar Kingdon-Ward 1667 (E!) Epipactis royleana Lindl. Upper Myanmar Farrer 1078 (E!) Epipogium aphyllum Sw. Listed as occurrence in Myanmar Kurzweil and Lwin 2014 Epipogium roseum (D. Don) Lindl. Mt. Popa, Mandalay; Mt. Victoria, Xiaohua Jin et al. PT-6483 & Kanpetlet, Chin; Putao, Kachin PT-6938 (PE!); Cooper 5951A (E!); Kuroiwa et al. 051335 MBK Eria albiflora Rolfe Putao, Kachin Ye Lwin Aung PT-7055, PT7090, PT-7101 (PE!) Eria clausa King & Pantl. Putao, Kachin Ye Lwin Aung PT-7084 (PE!) Eria coronaria (Lindl.) Rchb. f. Mt. Victoria & Haka, Chin Ye Lwin Aung PT-7525 (PE!); Venning 54 (K!) Eria javanica (Sw.) Blume Mon; YePhyu, Tanintharyi Ye Lwin Aung PT-7262A, PT7314 (PE!) Eria laniceps Rchb. f. Tanintharyi Kress et al. 2003 Eria scabrilinguis Lindl. YePhyu, Tanintharyi Ye Lwin Aung PT-7353 (PE!) Eria sicaria Lindl. Tanintharyi Kress et al. 2003 Eria vittata Lindl. Listed as occurrence in Myanmar Kurzweil and Lwin 2014 Eriodes barbata (Lindl.) Rolfe Reported from Myanmar Kress et al. 2003 Erythrodes blumei (Lindl.) Schltr. Putao, Kachin Xiaohua Jin et al. PT-5354 (PE!) Erythrodes hirsuta (Griff.) Ormerod Chin Kress et al. 2003 Erythrorchis altissima (Blume) Blume YePhyu, Tanintharyi Ye Lwin Aung PT-7268 (PE!) 84 Ye Lwin Aung et al. / PhytoKeys 138: 49–112 (2020) No. Species 522 Eulophia andamanensis Rchb. f. 524 525 526 Eulophia bicallosa (D. Don) P.F. Hunt & Summerh. Eulophia bracteosa Lindl. Eulophia dabia (D. Don) Hochr. Eulophia flava (Lindl.) Hook. f. 527 Eulophia graminea Lindl. 528 Eulophia herbacea Lindl. 529 Eulophia macrobulbon (Parish & Rchb. f.) Hook. f. Eulophia nuda Lindl. 523 530 531 532 533 534 535 536 537 538 539 543 544 Gastrochilus distichus (Lindl.) Kuntze 545 Gastrochilus intermedius (Griff. ex Lindl.) Kuntze Gastrochilus obliquus (Lindl.) Kuntze 542 546 Chin, Kachin, Magway, Mandalay, Sagaing, Shan Tanintharyi Listed as occurrence in Myanmar PyinOoLwin (Maymyo), Mandalay; Lwelin loihonmein Taung & Taunggyi Reserve, Shan Kachin; Tanintharyi; Mt. Popa, Mandalay Chin; Kachin; Magway; PyinOoLwin (Maymyo), Mandalay; Sagaing; Lwelin lymonmein Taung & Taunggyi Reserve, Shan Kachin; Mt. Victoria & Mindat, Chin; Mon Bago; Mt. Popa & PyinOoLwin (Maymyo), Mandalay; Mon; Lwelin Lymon Mein Taung & Taunggyi Reserve, Shan; Tanintharyi Eulophia promensis Lindl. Hmaing-Yee, Shan; Bago Eulophia pulchra (Thouars) Lindl. Reported from Myanmar Eulophia sooi Chun & Tang ex Chen Listed as occurrence in Myanmar Eulophia zollingeri (Rchb. f.) J.J.Sm. Mt. Popa, Mandalay Eulophia siamensis Rolfe ex Downie Mt. Victoria, Chin Galearis spathulata (Lindl.) Hunt Listed as occurrence in Myanmar Galearis tschiliensis (Schltr.) Valley of Dichu, Kachin P.J.Cribb, S.W.Gale & R.M.Bateman Galearis wardii (W.W. Sm.) Hunt Nogmung, Kachin; Seinghku taung, Northern Myanmar Galeola lindleyana Rchb. f. Putao, Kachin; Chin Galeola nudifolia Lour. Gastrochilus acutifolius (Lindl.) Kuntze Gastrochilus bellinus (Rchb. f.) Kuntze Gastrochilus calceolaris D. Don 540 541 Local distribution Mon; Tanintharyi; Mt. Popa, Mandalay Specimen citations Khin Myo Htwe 9 (spirit collection-MBK, TNS), Khin Myo Htwe 035063 (MBK) Kress et al. 2003 Kress et al. 2003 Kurzweil and Lwin 2014 Maung Po Khant 16310 & 16319 (E!); Lace s.n. (E!) Khin Myo Htwe 44, 100 (spirit collection-TNS) Khan 24 (K!); English 160 (E!); Lace s.n. (E!); Maung Po Khant 16307 & 16315 (E!); Abdul Kholil s.n. (BM!) Cooper 6077 (E!); KingdonWard 22186 (BM!) Maung Po Khant 16305 & 16317 (E!); Lace s.n. (E!); Prazer s.n. (E!); Kingdon-Ward s.n. (E!); Kingdon-Ward 22228 & 22207 (BM!); Khin Myo Htwe 107 (spirit collectionMBK) Maung Po Khant 16352 (E!) Kress et al. 2003 Kurzweil and Lwin 2014 Tanaka et al. 036244 (MBK) X.H. Jin 24553 (PE!) Kurzweil and Lwin 2014 F.K.W. 7197 (K!) Mon, Tanintharyi Reported from Myanmar Kingdon-Ward 7007 (K!), Kingdon-Ward 9678 (BM) Xiaohua Jin et al. PT-2293 (PE!); Forrest 26846 & 29734 (E!); Farrer 1107 (E!) Kress et al. 2003 Kress et al. 2003 Recorded from Myanmar s.coll. s.n. (E!) Putao, Kachin; Chin; Rakhine; Tanintharyi; Yangon Mt. Victoria, Chin; Kachin Xiaohua Jin et al. PT-6800 (PE!) Xiaohua Jin et al. PT-5397 (PE!), Ye Lwin Aung PT-7478 (PE!); Unwin 3068 (E!); Kingdon-Ward 21930 (BM!) Xiaohua Jin et al. PT-6917 (PE!) Kate Armstrong 2282 & 3077 (NY!); McMillen 144 (US); Wallich 7304 (AMES!) Putao, Kachin; Tanintharyi Putao, Kachin; Kyaukme, Shan Checklist of Myanmar orchid flora No. Species 547 Gastrochilus pechei Schltr. 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 Gastrochilus platycalcaratus (Rolfe) Schltr. Gastrochilus pseudodistichus (King & Pantl.) Schltr. Gastrochilus sukhakulii Seidenf. Gastrodia elata Blume Gastrodia kachinensis X.H.Jin & L.A.Ye Gastrodia menghaiensis Z.H.Tsi & S.C.Chen Gastrodia putaoensis X.H.Jin Local distribution Mawlamyaing (Moulmein), Mon; Tanintharyi Upper Myanmar Listed as occurrence in Myanmar Reported from Myanmar Listed as occurrence in Myanmar Hponkanrazi Wildlife Sanctuary, Putao Township, Kachin State Listed as occurrence in Myanmar Hkakaborazi National Park, Putao District, Kachin State 85 Specimen citations Peché 40811 (W!); s.coll. s.n. (K!) Sander & Sono 100-09 (K!); s.coll. s.n. (K!) Kurzweil and Lwin 2014 Kress et al. 2003 Kurzweil and Lwin 2014 Xiaohua Jin et al. PT -6897 (Putao expedition team 6897) (Holotype, PE!) Kurzweil and Lwin 2014 Xiaohua Jin et al. PT-2275 (holotype: PE!; isotypes: PE!, IBSC!) Geodorum densiflorum (Lam.) Schltr. Mt. ZweKaBin, Kayin; Bago; Mt. Xiaohua Jin et al. PT-2566 Popa, Mandalay (PE!); Kingdon-Ward 17464 (NY!); Tanaka et al. 020328 (MBK) Geodorum eulophioides Schltr. Mt. Popa, Mandalay Khin Myo Htwe 55 (spirit collection-TNS), Tsujita 036208 (spirit collectionTNS) Geodorum recurvum (Roxb.) Alston Kachin; Mt. Popa, Mandalay; Shan Mokim s.n. (BM!); Tanaka et al. 020437 (MBK); Khin Myo Htwe 41 & 42 (spirit collection-TNS); Khin Myo Htwe 109 (spirit collectionMBK, TNS) Geodorum siamense Rolfe ex Downie Upper Myanmar Forrest 9172 (E!); Rogers s.n. (E!) Geodorum terrestre (L.) Garay PyinOoLwin (Maymyo), Mandalay; Parish 180 & 275 (K!); Lace Moulmein, Mon s.n. (E!) Goodyera foliosa (Lindl.) Benth. ex Mountain at the East of Fort Hertz, Xiaohua Jin et al. PT-ET C.B.Clarke Putao, Kachin 835, PT-ET 841, PT-ET 569, PT-ET 530, PT-2220 (PE!); Kate Armstrong 2094 (NY!); Griffith s.n. (K!); s.coll. s.n. (K!); Kingdon-Ward 10138 & 13271 (BM!) Goodyera fumataThwaites Keng Tung, Shan Robertson 306 (K!) Goodyera fusca (Lindl.) Hook.f. Northeast Upper Myanmar Forrest 27452 (K!) & (E!) & (BM!) Goodyera hemsleyana King & Pantl. Chipwi, Kachin Kingdon-Ward 1897 (E!) Goodyera marginata Lindl. Recorded from Myanmar Kingdon-Ward 1879 (E!) Goodyera myanmarica Ormerod Mountains at the East of Fort Hertz, Kingdon-Ward 7368 & C.S.Kumar Putao Township, Kachin State (holotype, K) Goodyera pendula Maxim. Putao, Kachin Xiaohua Jin et al. PT-ET 842 & PT-2287 (PE!) Goodyera procera Hook. Bago; Chin; Putao, Kachin; Shan Xiaohua Jin et al. PT-6401 (PE!); Kingdon-Ward 24127 (E!); Kingdon-Ward 20593 & 11239 (BM!) 86 Ye Lwin Aung et al. / PhytoKeys 138: 49–112 (2020) No. Species 568 Goodyera repens (L.) R.Br. Local distribution Putao, Kachin Putao, Kachin Listed as occurrence in Myanmar Specimen citations Xiaohua Jin et al. PT-ET 863, PT-2181 (PE!); Kingdon-Ward 13407 & 13161 (BM!) Kate Armstrong 1943 (NY!) Kurzweil and Lwin 2014 Tanintharyi Reported from Myanmar Griffith 5318 (P!) Kress et al. 2003 Upper Myanmar Farrer 1118 (E!); KingdonWard 3294 (E!) MacGregor 814 (E!); Prazer 169 (BM!) s.coll. s.n. (E!) MacGregor 817 (E!) Kress et al. 2003 Parish 124 & 245 (K!) 573 Goodyera schlechtendaliana Rchb. f. Goodyera viridiflora (Blume) Lindl. ex Dietr. Grammatophyllum speciosum Blume Grosourdya appendiculata (Blume) Rchb. f. Gymnadenia orchidis Lindl. 574 Habenaria acuifera Wall. Chin; Shan; Tanintharyi 575 576 577 578 Habenaria aitchisonii Rchb. f. Habenaria arietina Hook. f. Habenaria avana Hook. f. Habenaria chlorina Parish & Rchb. f. Habenaria commelinifolia Wall. Recorded from Myanmar Chin, Shan Reported from Myanmar Yangon; Moulmein, Mon Habenaria corticicola W.W. Sm. Habenaria corymbosa Parish & Rchb. f. Habenaria delavayi Finet Habenaria dentata (Sw.) Schltr. Reported from Myanmar Recorded from Myanmar 569 570 571 572 579 580 581 582 583 Kachin; Shan; Yangon Reported from Myanmar Chin; Mt. Popa & PyinOoLwin (Maymyo), Mandalay; Kalaw, Shan 585 Habenaria dentirostrata Tang & F.T. Wang Habenaria digitata Lindl. Taunggyigon Reserve, Meikhtila, Mandalay Mt. Popa, Mandalay; Tanintharyi 586 Habenaria diphylla (Nimmo) Dalzell Shan; Dawei (Tavoy), Tanintharyi 587 Habenaria ditricha Hook. f. Putao, Kachin; Moulmein, Mon 588 589 590 591 Habenaria fulva Tang & F.T. Wang Habenaria furcifera Lindl. Habenaria humidicola Rolfe Habenaria intermedia D. Don Reported from Myanmar Chin, Yangon Listed as occurrence in Myanmar Chin 592 593 594 595 Habenaria limprichtii Schltr. Habenaria lindleyana Steud. Habenaria linearis King & Pantl. Habenaria linguella Lindl. Recorded from Myanmar Reported from Myanmar Reported from Myanmar Loilem District, Shan State 584 MacGregor 690 (E!); Mokim 131 (US) Kress et al. 2003 Parish 329 (K!) Kress et al. 2003 Xiaohua Jin et al. PT-5114 (PE!); Lace 4322 (E!); MacGregor 815 (E!); Keenan et al. 1582 (E!); Kingdon-Ward 3556 (E!); Roger 648 (E!); Kingdon-Ward 22707 (BM!); Khin Myo Htwe 71 (spirit collection-MBK, TNS) Maung Tha Myaing 263 (K!) & (E!) Khin Myo Htwe 50 (spirit collection-TNS) MacGregor 681 (E!); Keenan et al. 933, 758 & 905 (E!) Lobb 350 (K!); Kate Armstrong 1649 (NY!) Kress et al. 2003 Kress et al. 2003 Kurzweil and Lwin 2014 U Mg Gale-2 & U Chit Ko Ko 5595 (RAF), Yasuda 060067 (MBK), Tanaka & Yukawa 081134 (MBK), Tanaka & Yukawa 081279, 081398 (MBK), Mu Mu Aung et al. 092340 (MBK) Kingdon-Ward 1668 (E!) Kress et al. 2003 Kress et al. 2003 Robertson 7 (K) Checklist of Myanmar orchid flora No. Species 596 Habenaria lucida Wall. ex Lindl. 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 87 Local distribution Specimen citations Bago, Mon, Tanintharyi, Yangon, Mt. Murata et al. 021000 (MBK), Popa of Mandalay Region Khin Myo Htwe 61 (spirit collection-TNS) Habenaria malintana (Blanco) Merr. Mon, Tanintharyi, Mt. Popa of Tanaka et al. 020764 (MBK) Mandalay Region Habenaria malleifera Hook. f. Reported from Myanmar Kress et al. 2003 Habenaria mandersii Collett & Upper Myanmar Manders s.n. (K!) Hemsl. Habenaria marginata Colebr. Inle, Shan Robertson 428 (K!) Habenaria massoniana King & Reported from Myanmar Kress et al. 2003 Pantl. Habenaria medioflexa Turrill Mt. Popa, Mandalay Tanaka et al. 020761 (MBK, TNS) Habenaria mientienensis Tang & Sakangyi, Mandalay Mya 3658 (K!) F.T. Wang Habenaria myriotricha Gagnep. Dawei (Tavoy), Tanintharyi Keenan et al. 771, 887, 1379 & 841 (E!) Habenaria pantlingiana Kraenzl. Mindat, Chin; Shan Kingdon-Ward 22580 (BM!); Seo et al. 100743 (MBK) Habenaria pectinata D. Don Mindat, Chin; Mandalay Kingdon-Ward 22357 (BM!) Habenaria plurifoliata Tang & Putao, Kachin Xiaohua Jin Jin-14581 (PE!) F.T.Wang Habenaria prazeri King & Pantl. Reported from Myanmar Kress et al. 2003 Habenaria reflexa Blume Mt. Popa, Mandalay Khin Myo Htwe 67 (spirit collection-MBK) Habenaria reniformis (D.Don) Kyaukpadaung Township, Mandalay Saw Lwin et al. MPO 020 Hook.f. Region (SING) Habenaria rhodocheila Hance Mindat & Falam, Chin; Pyin Oo Rodger 201 (K!); KingdonLwin (Maymyo), Mogok & Mt. Popa, Ward 22700 (BM!); Daun 98 Mandalay (K); Samuel 13582 (K); Khin Myo Htwe 024088A (MBK) Habenaria rostrata Wall. ex Lindl. Bago, Tanintharyi Wallich s.n. (GH!) & (P!) Habenaria shweliensis W.W. Sm. Mogok, Mandalay Rodger 387 (K!); Lace s.n. (E!) & Banerji Habenaria spatulifolia Parish & Tanintharyi Parish 217 (K!) Rchb. f. Habenaria stenopetala Lindl. Mt. Popa, Mandalay Khin Myo Htwe 66 (spirit collection-TNS) Habenaria tonkinensis Seidenf. Putao, Kachin Xiaohua Jin et al. PT-2545 (PE!) Habenaria trichosantha Wall. Mon Kress et al. 2003 Habenaria triquetra Rolfe Reported from Myanmar Kress et al. 2003 Habenaria vidua Parish & Rchb. f. Mon, Tanintharyi Parish 223 (K!) Habenaria viridiflora (Rottler ex Mt. Popa, Mandalay Kress et al. 2003 Sw.) Lindl. Habenaria yomensis Gage Reported from Myanmar Kress et al. 2003 Habenaria yuana Tang & Wang Mt. Victoria, Chin; Mt. Popa, Tanaka & Yukawa 081279 Mandalay (MBK), Khin Myo Htwe 65 (spirit collection-TNS) Hemipilia calophylla Parish & Rchb. f. Putao, Kachin; PyinOoLwin Xiaohua Jin et al. PT-2569 (Maymyo), Mandalay; Gokteik, (PE!); s.coll. 13507 (K!); J.H. Lashio, Shan; Moulmein, Mon Lace s.n. (K!); Parish 348 (K!); Kingdon-Ward 22358 (BM!) Hemipilia cordifolia Lindl. Mt. Victoria & Haka, Chin; Shan Venning 18 (K!); Cooper 6048 (E!) 88 Ye Lwin Aung et al. / PhytoKeys 138: 49–112 (2020) No. Species 625 Hemipilia limprichtii Schltr. 626 Herminium edgeworthii (Hook.f. ex Collett) X.H.Jin, Schuit., Raskoti & Lu Q.Huang 627 Herminium elisabethae (Duthie) Tang & F.T.Wang 628 Herminium fallax (Lindl.) Hook.f. Local distribution PyinOoLwin (Maymyo), Mandalay Listed as occurrence in Myanmar Specimen citations R.C.F. Swinhoe 67 (K!) Kurzweil and Lwin 2014 Listed as occurrence in Myanmar Kurzweil and Lwin 2014 Chin 629 630 631 Herminium forceps (Finet) Schltr. Herminium kamengense A.N. Rao Herminium lanceum (Thunb. ex Sw.) Vuijk Shan Chin Chin; Kachin; Mt. Popa, Mandalay 632 Herminium latilabre (Lindl.) X.H.Jin, Schuit., Raskoti & Lu Q.Huang Herminium mannii (Rchb.f.) Tang & F.T.Wang Herminium souliei (Finet) Rolfe Herminium quinquelobum King & Pantl. Herpysma longicaulis Lindl. Yasuda 053610A (MBK), Yasuda 060088 (spirit collection-MBK), Yasuda 053613 (MBK, spirit collection MBK), Mu Mu Aung et al. 092824 (MBK), Fujikawa et al. 094119 (MBK) Kilgour et al. m-760 (MBK) Kress et al. 2003 Ye Lwin Aung PT-7224 (PE!); Forrest 27084 (E!); Farrer 995 (E!); Kingdon-Ward 1662 (E!); Kingdon-Ward 22612 (BM!); Murata et al. 021048 (MBK) Venning 62 (K!); KingdonWard 22671 (BM!) 633 634 635 636 637 Hetaeria affinis (Griff.) Seidenf. & Ormerod 638 639 640 641 Hetaeria anomala Lindl. Hetaeria finlaysoniana Seidenf. Hetaeria oblongifolia (Blume) Blume Holcoglossum amesianum (Rchb. f.) Christenson 642 643 644 645 646 Haka, Chin Reported from Myanmar Kress et al. 2003 Shan Mt. Victoria, Chin Seo et al. 100687 (MBK) X.H. Jin 24588 (PE!) Putao, Kachin Xiaohua Jin et al. PT-ET 215, PT-2075, PT-2263 (PE!); Ye Lwin Aung PT-7039 (PE!); Keenan et al. 3308 (E!); Kate Armstrong 2114 (NY!); Kingdon-Ward 13525 (BM!) Lulay 9040 (K!); Lace 4606 (K!) Chin; Kachin; Magway; Mandalay; Uyu, Upper Chindwin, Sagaing; Shan; Thaton, Mon Recorded from Myanmar Listed as occurrence in Myanmar Tanintharyi Putao, Kachin; Sagaing; Shan; Mt. Popa, Mandalay Kingdon-Ward 20633 (BM!) Kurzweil and Lwin 2014 Helfer 464 (K!) Xiaohua Jin et al. PT-5101 (PE!), Khin Myo Htwe 76 (spirit collection-MBK, TNS) Holcoglossum himalaicum (Deb, Putao, Kachin; Valley of the Sunghku, Xiaohua Jin et al. PT-2101 Sengupta & Malick) Aver. Northernmost Myanmar (PE!); Kingdon-Ward 7620 (K!); Kingdon-Ward 21528 (BM!) Holcoglossum kimballianum (Rchb. Chin; Kachin; Taunggyi & Kalaw, Xiaohua Jin et al. PT-5099 f.) Garay Shan (PE!); Ye Lwin Aung PT-7599, PT-7600 (PE!); s.coll. s.n. (E!) Holcoglossum subulifolium (Rchb. f.) Chin, Kachin, Sagaing, Shan Kress et al. 2003 Christenson Lecanorchis javanica Blume Putao, Kachin Xiaohua Jin et al. PT-ET 1185 B (PE!) Lecanorchis nigricans Honda Putao, Kachin Ye Lwin Aung PT-7151 (PE!) Checklist of Myanmar orchid flora No. Species 647 Lecanorchis sikkimensis Pearce & Cribb 648 Liparis barbata Lindl. 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 Local distribution Putao, Kachin 89 Specimen citations Xiaohua Jin et al. PT-2091, PT-2109 (PE!) Lawa, 85.30 km west of Myitkyina & Xiaohua Jin et al. PT-6953 Putao, Kachin (PE!); H.S.M. Lee 6284 (K!) Liparis bistriata Parish & Rchb. f. Putao & Myitkyina, Kachin; Ye Lwin Aung PT-7074 (PE!); Tanintharyi Su Koe 10109 (K!); Parish 80 (K!) Liparis bootanensis Griff. YePhyu, Tanintharyi Ye Lwin Aung PT-7352 (PE!); Parish 233 (K!) Liparis cespitosa (Lam.) Lindl. Putao, Kachin; YePhyu, Tanintharyi Xiaohua Jin et al. PT-ET 567 (PE!); Ye Lwin Aung PT-7266, PT-7089 (PE!); Kingdon-Ward 3338 & 1771 (E!) Liparis chapaensis Gagnep. Reported from Myanmar Kress et al. 2003 Liparis condylobulbon Rchb. f. Mon Kress et al. 2003 Liparis deflexa Hook. f. Falam & Mindat, Chin; Upper Daun 92 (K!); Lace 4301 (K!) Chindwin, Sagaing & (E!); Abdul Huk s.n. (K!); Kingdon-Ward 22563 (BM!) Liparis distans C.B.Clarke border regions of Putao and Xiaohua Jin et al. PT-5270 Nogmung Townships, Kachin State (PE!), Kurzweil H & Saw Lwin KL 2460 (herbarium of Myanmar Floriculturist Association) Liparis downii Ridl. Reported from Myanmar Kress et al. 2003 Liparis elliptica Wight Putao, Kachin Xiaohua Jin et al. PT-6481 (PE!); Kingdon-Ward 9174, 9127 & 10178 (BM!) Liparis forrestii Rolfe Reported from Myanmar Kress et al. 2003 Liparis grossa Rchb. f. Reported from Myanmar Kress et al. 2003 Liparis jovispluvii Parish & Rchb. f. Mindat, Chin; Mon; Paungdaw Keenan et al. 885 (K!) & (E!); Power station, Tanintharyi Parish 323 (K!); KingdonWard 22517 & 22466 (BM!) Liparis lacerata Ridl. Tanintharyi Griffith 5073 (K!) Liparis luteola Lindl. Chin, Kachin, Magway, Mandalay, Kress et al. 2003 Mon, Sagaing, Shan, Tanintharyi Liparis mannii Rchb.f. Putao & Tanai Townships, Kachin Xiaohua Jin et al. PT-6295 State (PE!); Murata et al. 041223 (MBK) Liparis nervosa (Thunb.) Lindl. Putao, Kachin; Magway; Mon; Shan; Ye Lwin Aung PT-7125, PTTanintharyi 7145 (PE!); s.coll. 01007 (K!); Liparis odorata (Willd.) Lindl. Mindat, Chin; Kachin; Mandalay; Swinhoe 58 (K!); Mokim Sagaing; Lwelin Hlaing Hokmein 23 (K!) & (BM!) & (US); taung, Shan; Tanintharyi Parish 317 (K!); Maung Po Khant 16327 & 16350 (E!); Kingdon-Ward 22516 & 22517 (BM!) Liparis petiolata (D. Don) P.F. Hunt Chipwi Township, Kachin State Kingdon-Ward 1838 (E!) & Summerh. Liparis plantaginea Lindl. Nogmung or Putao Township, Kachin Kress et al. 2003 State Mt. Popa, Mandalay Xiaohua Jin et al. 19984 Liparis popaensis X.H.Jin, A.T.Mu & L.A.Ye (holotype, PE!; isotype, RAF!) Liparis regnieri Finet Mt. Popa & PyinOoLwin (Maymyo), Tsujita et al. 036188 (spirit Mandalay; Upper Myanmar collection-TNS); J.H. Lace s.n. (K!); D. Burlee s.n. (K!); s.coll. 13576 (K!) 90 Ye Lwin Aung et al. / PhytoKeys 138: 49–112 (2020) No. Species 670 Liparis resupinata Ridl 673 Liparis siamensis Rolfe ex Downie Liparis stenoglossa Parish & Rchb. f. Liparis stricklandiana Rchb.f. 674 675 Liparis torta Hook. f. Liparis tschangii Schltr. 676 Liparis viridiflora (Blume) Lindl. 677 678 679 Ludisia discolor (Ker Gawl.) Lindl. Luisia amesiana Rolfe Luisia brachystachys Blume 680 Luisia cantharis Rolfe 681 Luisia filiformis Hook.f. 682 Luisia hancockii Rolfe 683 Luisia macrotis Rchb.f. 684 685 686 Luisia magniflora Tsi & Chen Luisia primulina Parish & Rchb. f. Luisia psyche Rchb. f. 687 688 689 690 Luisia thailandica Seidenf. Luisia trichorrhiza (Hook) Blume Luisia volucris Lindl. Luisia zeylanica Lindl. 691 692 Luisia zollingeri Rchb. f. Malaxis muscifera (Lindl.) Kuntze 671 672 Local distribution Waingmaw Township, Kachin State Mt. Popa, Mandalay Recorded from Myanmar Putao, Kachin Reported from Myanmar Lwelin Hlaing Hokmein taung, Shan; Pyay, Bago Ayeyarwaddy; Zamani Reserve, Bago; Putao, Kachin; Kayah; Kayin; Mandalay; Mon; Hkamti, Sagaing; Shan; YePhyu, Tanintharyi Reported from Myanmar Shan Mt. Victoria, Chin; Paunglaung Creek, Nay Pyi Taw-Shan Yoma PyinOoLwin (Maymyo), Mandalay; Shan Mt. Victoria, Chin; Alaungdaw Kathapa National Park, Sagaing Putao, Kachin; Alaungdaw Kathapa National Park, Sagaing Mt. Popa, Mandalay Listed as occurrence in Myanmar Moulmein, Mon; Tanintharyi Mon; Tanintharyi; Mt. Popa, Mandalay Specimen citations Stephen Lasi Bawk Naw BW 32 (herbarium of the Myanmar Floriculturist Association) Ye Lwin Aung PT-7225 (PE!) Parish 154 (K!) Ye Lwin Aung PT-7016, PT7075, PT-7083 (PE!) Kress et al. 2003 Maung Po Khant 16326 (E!); Sugawara et al. 036384 (MBK) Xiaohua Jin et al. PT-5261 (PE!); Ye Lwin Aung PT-7173, PT-7176, PT-7262, PT-7340, PT-7013 (PE!); Lace s.n. (E!); Kate Armstrong 2230 & 3193 (NY!); Kingdon-Ward 288 (NY!); Egerod B-109 (US) Kress et al. 2003 Garden Collector 583 (K!) Ye Lwin Aung PT-7385, PT7489, PT-7543 (PE!); Batten s.n. (BM!) Bogg B.G. 8 (K!); s.coll. s.n. (K!) Ye Lwin Aung PT-7422, PT7568 (PE!) Ye Lwin Aung PT-7399, PT7057 (PE!) Khin Myo Htwe 26 (spirit collection-TNS) Kurzweil and Lwin 2014 Peche s.n. (K!) Maxwell JF 98- 1303 (L!); s.coll. s.n. (K!); Tanaka et al. 036142 (MBK, spirit collection-TNS), Tsujita et al. 036167 (spirit collectionTNS) Reported from Myanmar Kress et al. 2003 PyinOoLwin (Maymyo), Mandalay A. Samuel 13558 (K!) Reported from Myanmar Kress et al. 2003 Mt. Popa, Mandalay; Bago; Kachin; Khin Myo Htwe 17 (spirit Tanintharyi; Yangon collection-TNS), Khin Myo Htwe 035060 (MBK), Tanaka et al. 036242 (spirit collectionMBK, TNS) & 036252 (spirit collection-TNS), Khin Myo Htwe 93 (spirit collectionMBK) Reported from Myanmar Kress et al. 2003 Chin, Tanintharyi Farrer 1117 (E!); KingdonWard 1769 (E!); KingdonWard 9758 (BM!) Checklist of Myanmar orchid flora No. Species 693 Malaxis versicolor (Lindl.) Abeywickr. 694 Micropera obtusa (Lindl.) Tang & F.T. Wang 695 Micropera pallida (Roxb.) Lindl. 696 697 698 699 700 Micropera rostrata (Roxb.) N.P. Balakr. Micropera secunda (Rolfe) T. Tang & F.T. Wang Micropera thailandica (Seidenf. & Smitinand) Garay Microsaccus griffithii (Parish & Rchb. f.) Seidenf. Mycaranthes floribunda (D.Don) S.C.Chen & J.J.Wood 701 702 Mycaranthes oblitterata Blume Mycaranthes pannea (Lindl.) S.C.Chen & J.J.Wood 703 Myrmechis drymoglossifolia Hayata 704 Myrmechis pumila (Hook.f.) Tang & Wang 705 Neogyna gardneriana (Lindl.) Rchb.f. 706 Neottia dentata (King & Pantl.) Szlach. Neottia flabellata (W.W.Sm.) Szlach. 707 708 Neottia karoana Szlach. 709 Neottia longicaulis (King & Pantl.) Szlach. Neottia pinetorum (Lindl.) Szlach. 710 711 712 713 714 Neottia unguiculata (W.W.Sm.) Szlach. Nephelaphyllum cordifolium (Lindl.) Blume Nephelaphyllum pulchrum Blume Nephelaphyllum tenuiflorum Blume 91 Local distribution Reported from Myanmar Specimen citations Kress et al. 2003 Putao, Kachin; Mon; Tanintharyi Ye Lwin Aung PT-7053 (PE!) Putao, Kachin; Tanintharyi Reported from Myanmar Xiaohua Jin et al. PT-2072, PT-2378 (PE!); A.F.G. Kerr 01000 (K!) & (P!) Kress et al. 2003 Recorded from Myanmar s.coll. s.n. (K!) YePhyu, Tanintharyi Saw Lwin et al. TNRO 61 (SING, SING [spirit], herbarium of Myanmar Floriculturist Association) Kress et al. 2003 Reported from Myanmar Putao, Kachin; Naga hill, Sagaing; Mandalay Xiaohua Jin et al. PT-2069 (PE!), Ye Lwin Aung PT-7103, PT-7126 (PE!); D. Prain 67 (K!); Kingdon-Ward 10208 (BM!) Putao, Kachin Ye Lwin Aung PT-7081 (PE!) Putao, Kachin; Mt. Victoria, Chin; Xiaohua Jin et al. PT-2049 Upper Myanmar; Tanintharyi (PE!), Ye Lwin Aung PT-7049, PT-7121, PT-7183, PT-7191, PT-7566 (PE!); Daun 67 (K!); G. Forrest 25121 (K!) Putao, Kachin Xiaohua Jin et al. PT-2096 & PT-2224 (PE!) Laktang, Putao, Kachin Kingdon-Ward 3337 & 1722 (E!); Kingdon-Ward 21107 (BM!) Putao, Kachin Xiaohua Jin et al. PT-ET 1026 (PE!); s.coll. s.n. (E!); Kingdon-Ward 9109 (BM!) Tama Bum, North Triangle of Kachin Kingdon-Ward 21058 (AMES, State BM) Valley of the Chawng-maw-hka, Kingdon-Ward 3414 (E!) & Upper Myanmar (BM!); Kingdon-Ward 21085 (BM!) Putao & Nogmung, Kachin Xiaohua Jin et al. PT-2122, PT-2223 (PE!), Kingdon-Ward 9961 (AMES), Kingdon-Ward 3359 (E) Listed as occurrence in Myanmar Kurzweil and Lwin 2014 Chipwi Township, Kachin State Nogmung Township, Kachin State Kingdon-Ward 1631 & 1652 (E!) Kingdon-Ward 3350 & 1875 (E!) Kingdon-Ward 7314 (K) Kachin Putao, Kachin Keenan et al. 3015 (E!) Ye Lwin Aung PT-7120 (PE!) Hpimaw Pass & Laktang, Kachin 92 Ye Lwin Aung et al. / PhytoKeys 138: 49–112 (2020) No. Species 715 Nervilia concolor (Blume) Schltr. 720 Nervilia juliana (Roxb.) Schltr. Nervilia khasiana (King & Pantl.) Schltr. Nervilia macroglossa (Hook. f.) Schltr. Nervilia maculata (Parish & Rchb. f.) Schltr. Nervilia plicata (Andrews) Schltr. 721 Oberonia acaulis Griff. 722 723 Oberonia angustifolia Lindl. Oberonia anthropophora Lindl. 724 725 726 727 Oberonia bantaengensis J.J.Sm. Oberonia brachystachys Lindl. Oberonia brunoniana Wight Oberonia caulescens Lindl. 728 729 Oberonia cavaleriei Finet Oberonia ensiformis Lindl. 730 731 732 Oberonia evrardii Gagnep. Oberonia falcata King & Pantl. Oberonia falconeri Hook. f. 733 Oberonia ferruginea Parish 734 735 736 Oberonia forcipata Lindl. Oberonia gammiei King & Pantl. Oberonia griffithiana Lindl. 737 738 739 740 741 742 Oberonia helferi Hook.f. Oberonia heliophila Rchb.f. Oberonia insectifera Hook.f. Oberonia jenkinsiana Griff. ex Lindl. Oberonia lycopodioides (Koenig) Ormerod Oberonia mannii Hook. f. 743 Oberonia maxima Parish 716 717 718 719 Local distribution Mt. Popa, Mandalay Listed as occurrence in Myanmar Reported from Myanmar Specimen citations Kingdon-Ward 22208 (BM!); Than Than Aye & Khin Myo Htwe 020725 (MBK), Khin Myo Htwe 024044 (MBK) Kurzweil and Lwin 2014 Kress et al. 2003 Kachin Kress et al. 2003 PyinOoLwin (Maymyo), Mandalay; Mon; Tanintharyi Mt. Zwekabin, Kayin; Mandalay; Mon; Tanintharyi Parish 165 (K!); Rodger 572 (E!) Xiaohua Jin et al. PT-2565 (PE!); Kingdon-Ward 486 (NY!); Kingdon-Ward 22166 (BM!) Putao, Kachin; YePhyu, Tanintharyi Xiaohua Jin et al. PT-2028, PT-5252 (PE!); Ye Lwin Aung PT-7347 (PE!); Kingdon-Ward 1862 (E!) YePhyu, Tanintharyi Ye Lwin Aung PT-7344 (PE!) Putao, Kachin; Mt. Victoria, Chin; Xiaohua Jin et al. PT-5220 Dawei (Tavoy), Tanintharyi (PE!); Ye Lwin Aung PT-7066, PT-7079, PT-7102 (PE!); Keenan et al. 1457 (E!) YePhyu, Tanintharyi Ye Lwin Aung PT-7289 (PE!) Tanintharyi s.coll. s.n. (GH!) Reported from Myanmar Kress et al. 2003 Valley of Dichu, Kachin Kingdon-Ward 7169 (K!); Kingdon-Ward 22783 (BM!) Chin, Mon Kress et al. 2003 Mt. Popa & Headwater of Satthwa Maung Hla 3638 (K!); Chaung, Mandalay Khin Myo Htwe 74 (spirit collection-TNS) Shan MacGregor 822 (E!) YePhyu, Tanintharyi Ye Lwin Aung PT-7282 (PE!) Mt. Victoria, Chin; Alaungdaw Ye Lwin Aung PT-7406, PTKathapa National Park, Sagaing; 7514 (PE!); A. Samuel 13516 PyinOoLwin (Maymyo), Mandalay (K!) Putao, Kachin; Mandalay; Mon; Xiaohua Jin et al. PT-2379 Tanintharyi (PE!); s.coll. 288 (K!) Mt. Victoria, Chin Ye Lwin Aung PT-7511 (PE!) Mt. Victoria, Chin Ye Lwin Aung PT-7510 (PE!) Putao, Kachin; Bago; Mon; Xiaohua Jin et al. PT-2259 Tanintharyi (PE!); s.coll. 826 (K!); Griffith 5090 (K!) Tanintharyi Helfer 5088 (K!) YePhyu, Tanintharyi Ye Lwin Aung PT-7343 (PE!) Mt. Victoria, Chin Ye Lwin Aung PT-7513 (PE!) Listed as occurrence in Myanmar Kurzweil and Lwin 2014 Tanintharyi Rottler s.n. (K!) Putao, Kachin Mon; Alaungdaw Kathapa National Park, Sagaing; Tanintharyi Xiaohua Jin et al. PT-2107, PT-2278 (PE!), Ye Lwin Aung PT-7023 (PE!) Ye Lwin Aung PT-7446 (PE!); Parish 287 (K!) Checklist of Myanmar orchid flora No. Species 744 Oberonia mucronata (D. Don) Ormerod & Seidenf. 745 Oberonia obcordata Lindl. 746 747 748 Oberonia pachyrachis Rchb.f. ex Hook.f. Oberonia pyrulifera Lindl. Oberonia rufilabris Lindl. Local distribution Mon, Shan, Tanintharyi Specimen citations Kress et al. 2003 Putao Township, Waingmaw Township, Kachin State Kurzweil, H. & Saw Lwin KL 2664 (SING), Stephen Lasi Bawk Naw BW 8 (RAF, herbarium of the Myanmar Floriculturist Association). Ye Lwin Aung PT-7512 (PE!) Mt. Victoria, Chin Chin Mon, Tanintharyi Oberonia seidenfadenii (H.J.Su) Ormerod Odontochilus clarkei Hook.f. Odontochilus crispus (Lindl.) Hook.f. Odontochilus elwesii Clarke ex Hook.f. Odontochilus grandiflorus (Lindl.) Benth. ex Hook.f. Odontochilus lanceolatus (Lindl.) Blume Alaungdaw Kathapa National Park, Sagaing Listed as occurrence in Myanmar Listed as occurrence in Myanmar Listed as occurrence in Myanmar 759 Odontochilus poilanei (Gagnep.) Ormerod Odontochilus putaoensis X.H. Jin, L.A. Ye & A.T. Mu Odontochilus tortus King & Pantl. Oreorchis aurantiaca Pearce & Gibbs Oreorchis discigera W.W. Sm. 760 761 Oreorchis foliosa (Lindl.) Lindl. Oreorchis micrantha Lindl. 762 763 Oreorchis oligantha Schltr. Otochilus albus Lindl. 764 Otochilus fusca Lindl. 765 Otochilus lancilabius Seidenf. 766 Otochilus porrectus Lindl. 767 Oxystophyllum carnosum Blume 749 750 751 752 753 754 755 756 757 758 93 Kress et al. 2003 Griffith s.n. (P!); s.coll. s.n. (E!) Ye Lwin Aung PT-7414 (PE!) Kurzweil and Lwin 2014 Kurzweil and Lwin 2014 Kurzweil and Lwin 2014 Putao, Kachin Ye Lwin Aung PT-7062 (PE!) Myitkyina & Putao, Kachin Putao, Kachin Kaulback 75 & 404 (BM!); Kingdon-Ward 13062 & 21255 (BM!) Ye Lwin Aung PT-7063 (PE!) Hponkanrazi Wildlife Sanctuary, Putao Township, Kachin State Kachin Kachin Xiaohua Jin et al. PT-ET 959 (Holotype, PE!) Kingdon-Ward 21255 (BM!) Kingdon-Ward 13334 (BM!) Chin, Kachin, Magway, Mandalay, Sagaing, Shan Kachin Recorded from Myanmar Kingdon-Ward 1640 (E!) & (BM!) Kingdon-Ward 9596 (BM!) Forrest 26809 (E!); KingdonWard 1633 (E!) Kingdon-Ward 7076 (K) Xiaohua Jin et al. PT-ET 1038 (PE!); Ye Lwin Aung PT-7300, PT-7301 (PE!); Keenan et al. 3556 (E!) Ye Lwin Aung PT-7085, PT7097, PT-7109, PT-7154, PT7207 (PE!); Forrest 26566 (E!) & (US); Kingdon-Ward 22095 (E!) & (BM!); Lace 5648 (E!); Keenan et al. 3816 (E!) Ye Lwin Aung PT-7374 (PE!); Xiaohua Jin et al. PT-ET 574 (PE!); Kate Armstrong 1917 (NY!) Ye Lwin Aung PT-7345, PT7520, PT-7521, PT-7522 (PE!); Kingdon-Ward 9081 & 22245 (BM!) Kress et al. 2003 Nogmung Township, Kachin State Putao, Kachin; Chin; YePhyu, Tanintharyi Putao, Kachin; Chin; Kyaikkami (Amherst), Mon Putao, Kachin; Paunglaung Creek, Nay Pyi Taw-Shan Yoma Mt. Victoria, Chin; YePhyu, Tanintharyi Mon, Tanintharyi 94 Ye Lwin Aung et al. / PhytoKeys 138: 49–112 (2020) No. Species 768 Pachystoma pubescens Blume Local distribution Myitkyina, Kachin Specimen citations Lace 5237 (E!); Kingdon-Ward 21786 (BM!) Mon, Tanintharyi Kress et al. 2003 Recorded from Myanmar Kingdon-Ward 21682 (BM!) Listed as occurrence in Myanmar Kurzweil and Lwin 2014 Putao, Kachin; Mt. Victoria, Chin Ye Lwin Aung PT-7479 (PE!), Kurzweil & Lwin 2442 (SING [spirit]), Kurzweil & Lwin 2573 (SING) Ye Lwin Aung PT-7284, PTMon; Mt. Popa, Mandalay; 7349, PT-7371, PT-7379 Paunglaung Creek, Nay Pyi Taw-Shan (PE!), Tanaka et al. 036190 Yoma; YePhyu, Tanintharyi (MBK, TNS), Tanaka et al. 036185 (spirit collectionTNS) Mt. Victoria, Chin Ye Lwin Aung PT-7547 (PE!) 769 770 771 772 Panisea apiculata Lindl. Panisea demissa (D. Don) Pfitzer Panisea distelidia Lund Panisea tricallosa Rolfe 773 Panisea uniflora (Lindl.) Lindl. 774 Panisea yunnanensis S.C.Chen & Z.H.Tsi Paphiopedilum bellatulum Pfitzer Meikhtila, Mandalay Prazer s.n. (K!); Lace s.n. (E!) Paphiopedilum callosum (Rchb.f.) Listed as occurrence in Myanmar Kurzweil and Lwin 2014 Stein Paphiopedilum charlesworthii (Rolfe) Shan, Yangon s.coll. s.n. (K!) Pfitzer Paphiopedilum concolor (Bateman) Kayin; Kyaikkami (Amherst), Mon; Parish 57 (K!); Bogg B.G. 20 Pfitzer Shan; Tanintharyi (K!) Paphiopedilum godefroyae (Godef.) Bago, Kayah, Kayin, Mon, Rakhine, Kress et al. 2003 Pfitzer Tanintharyi, Yangon Paphiopedilum hirsutissimum Reported from Myanmar Kress et al. 2003 (Lindl.) Pfitzer Paphiopedilum insigne (Wall.) Pfitzer Chin, Kachin, Mandalay, Sagaing, Kress et al. 2003 Shan Paphiopedilum myanmaricum Southern Myanmar Koopowitz et al. 2017 Koop., Iamwir. & S.Laohap. Paphiopedilum niveum (Rchb.) Reported from Myanmar Kress et al. 2003 Pfitzer Paphiopedilum parishii (Rchb.) Moulmein, Mon; Kalaw, Shan Parish 198 (K!); Maymyo Pfitzer Botanic Garden 13512 (K!) Paphiopedilum spicerianum (Rchb. Chin, Kachin Keenan et al. 3994 (K!) & (E!) f.) Pfitzer Paphiopedilum tigrinum Koop. & Listed as occurrence in Myanmar Kurzweil and Lwin 2014 Haseg. Paphiopedilum villosum (Lindl.) Mt. Victoria, Chin; Kachin; Ye Lwin Aung PT-7526 (PE!); Pfitzer Moulmein & Kyaikkami (Amherst), Lobb 179 (K!); Parish 92 (K!); Mon; Sagaing; Tanintharyi J.H. Lace 5645 (K!) & (E!); Kingdon-Ward 33 (NY!) Paphiopedilum wardii Summerh. Chin; Putao, Kachin; Mandalay; Xiaohua Jin et al. PT-6388 Sagaing (PE!); Kingdon Ward 9070 (K!) & (BM!) Papilionanthe biswasiana (Ghose & Putao, Kachin Xiaohua Jin et al. PT-6136 Mukerjee) Garay (PE!); Kingdon-Ward 21903 (E!); Kingdon-Ward 21903 (BM!) Papilionanthe sillemiana (Rchb. Reported from Myanmar Kress et al. 2003 f.) Garay Papilionanthe teres (Roxb.) Schltr. Mt. Victoria, Chin; thaton, Mon; Xiaohua Jin et al. PT-5179 YePhyu, Tanintharyi (PE!); Ye Lwin Aung PT-7239, PT-7326 (PE!); Lace s.n. (E!) Papilionanthe uniflora (Lindl.) Garay Reported from Myanmar Kress et al. 2003 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 Checklist of Myanmar orchid flora No. Species 793 Papilionanthe vandarum (Rchb. f.) Garay 794 Pecteilis hawkesiana (King & Pantl.) Sathish Kumar 795 Pecteilis henryi Schltr. 796 Pecteilis ophiocephala (W.W.Sm.) Ormerod 797 Pecteilis susannae (L.) Raf. Local distribution Chin Specimen citations Srisanga et al. 97605 (US) Upper Myanmar Prazer s.n. (K!) Naunghkio, Shan Laktang, Kachin State Lace 4854 (K!) & (E!) Kingdon-Ward 3336 (E!); Kachin; Lwelin Loiyang Main Taung Lace 67 (E!); Maung Po Khant & Kyay Si ManSan, Shan; Mt. Popa, 16320 & 16345 (E!); Mokim Mandalay 91 (E!); Kingdon-Ward 22695 (BM!); Murata et al. 020761 (MBK) ALaungdaw Kathapa National Park, Ye Lwin Aung PT-7416 (PE!) Sagaing Bago, Tanintharyi Kress et al. 2003 798 Pelatantheria ctenoglossum Ridl. 799 801 Pelatantheria insectifera (Rchb. f.) Ridl. Pelatantheria rivesii (Guillaumin) Tang & F.T.Wang Peristylus affinis (D. Don) Seidenf. 802 Peristylus constrictus (Lindl.) Lindl. Kachin; Chin; Mt. Popa & PyinOoLwin (Maymyo), Mandalay; Sagaing; Shan; Mon; Dawei (Tavoy), Tanintharyi 803 Peristylus densus (Lindl.) Santap. & Kapad. Haka, Chin; Loilan, Shan; PyinOoLwin (Maymyo), Mandalay; Moulmein, Mon; Tanintharyi 804 Peristylus goodyeroides (D. Don) Lindl. 805 806 Peristylus gracilis Blume Peristylus lacertifer (Lindl.) J.J. Sm. Mt. Zwekabin, Kayin; Shan; Chin; Mt. Popa & PyinOoLwin (Maymyo), Mandalay; Yangon; Dawei (Tavoy), Tanintharyi Reported from Myanmar Tanintharyi 807 Peristylus parishii Rchb. f. Mt. Popa, Mandalay; Shan; Mon 808 Peristylus prainii (Hook. f.) Krzl. 809 Peristylus tentaculatus (Lindl.) J.J. Sm. Peristylus tipulifer (Parish & Rchb. f.) Mukerjee Chin; Kachin; MongPaw Loihka, Shan; PyinOoLwin (Maymyo), Mandalay; Sagaing; Tanintharyi; Yangon; Munghoo & Delu valley, Upper Myanmar Reported from Myanmar 800 810 811 812 Phaius flavus (Blume) Lindl. Phaius mishmensis (Lindl. & Paxton) Rchb. f. 95 ALaungdaw Kathapa National Park, Sagaing PyinOoLwin (Maymyo), Mandalay Dawei (Tavoy), Tanintharyi Upper Myanmar Chin; Putao, Kachin; Mandalay; Sagaing Ye Lwin Aung PT-7411, PT7420, PT-7426 (PE!) English 160 (E!) & Lace 3227 (E!) Swinhoe 45 (K!); Lace 4907(E!); Keenan et al. 574 & 712 (E!); Mokim 14 & 130 (E!) & (US); Rodger 616 (E!); Kaulback 251 (E!); Maung Po Khant 16313 (E!); Tanaka et al. 020246 (MBK); Khin Myo Htwe 68 (spirit collectionTNS) Venning 58 (K!); Robertson 380 (K!); Lobb 363 (K!); Lace 3227 (K!); MacGregor 821 (E!) Xiaohua Jin et al. PT-2567 (PE!); Robertson 5 (K!); Daun 93 (K!); Keenan et al. 593 (K!); Lace 4907 & 5297 (E!) Kress et al. 2003 Keenan et al. 811, 1028 & 1814 (E!) Parish 216 (K!); MacGregor 6802 (E!); Tanaka et al. 036191 (MBK, spirit collection-TNS) Robertson 361 (K!); Swinhoe 50 (K!); Pantling 167 (K!); Kingdon-Ward 8532 (K!); Lace 3227 (E!) Kress et al. 2003 Keenan et al. 1191, 1192, 1177, 886 & 985 (E!); Kingdon-Ward 13102 (BM!) Kingdon-Ward 1739 (E!) Xiaohua Jin et al. PT-ET 1185 A, PT-ET 250 (PE!); Boxall s.n. (K!) 96 Ye Lwin Aung et al. / PhytoKeys 138: 49–112 (2020) No. Species 813 Phaius nanus Hook.f. 814 Phaius takeoi (Hayata) Su 815 Phaius tankervilleae (Aiton) Blume 816 Phaius wallichii Lindl. 817 Phalaenopsis cornu-cervi (Breda) Blume & Rchb. f. Phalaenopsis deliciosa (Rchb. f.) Sweet Phalaenopsis difformis (Wall. ex Lindl.) Kocyan & Schuit. 818 819 Local distribution Myitkyina, Kachin Taunggyi, Shan State Khaiyang, Upper Myanmar Mandalay, Tanintharyi, Yangon Specimen citations Lace 5236 (E!) Nyan Tun s.n. (SING) Kingdon-Ward 17324 (NY!); Griffith 5292 (P!) Kingdon-Ward 11315 (BM!); Khin Myo Htwe 29 (spirit collection-TNS) Mokim 640 (BM!) YePhyu, Tanintharyi Ye Lwin Aung PT-7312 (PE!) Putao, Kachin; Mt. Victoria, Chin; PyinOoLwin (Maymyo), Mandalay; Shan; Hkamti, Sagaing; Mon; Dawei (Tavoy), Tanintharyi Xiaohua Jin et al. PT-5256 (PE!); C.E.P 6155 (K!); Keenan et al. 973 (E!); Kingdon-Ward 1561 (E!); Cooper 6085 (E!); Kate Armstrong 2716 (NY!) Ye Lwin Aung PT-7400, PT7560, PT-7597 (PE!); s.coll. s.n. (E!) Kurzweil and Lwin 2014 Rule(?) 5777 (K!) Mt. Popa, Mandalay 820 Phalaenopsis hygrochila J.M.H.Shaw 821 822 Phalaenopsis kunstleri Hook.f. Phalaenopsis lobbii (Rchb.) Sweet 823 Phalaenopsis lowii Rchb. f. 824 825 Phalaenopsis mannii Rchb.f. Phalaenopsis natmataungensis (T.Yukawa, Nob.Tanaka & J.Murata) Dalstrom & Ormerod Phalaenopsis parishii Rchb.f. Listed as occurrence in Myanmar Mt. Victoria, Chin Phalaenopsis pulcherrima (Lindl.) J.J. Sm. Phalaenopsis stobartiana Rchb. f. Reported from Myanmar 826 827 828 829 830 831 832 833 Phalaenopsis sumatrana Korth. & Rchb.f. Phalaenopsis taenialis (Lindl.) Christenson & U.C. Pradhan Pholidota advena Parish & Rchb. f. Pholidota aidiolepis Seidenf. & de Vogel Pholidota articulata Lindl. Mt. Victoria, Chin; Alaungdaw Kathapa National Park, Sagaing; Taunggyi, Shan Listed as occurrence in Myanmar Nampakom Drainage, Upper Chindwin; Tanintharyi Mon, Tanintharyi Tanintharyi Putao, Kachin Parish 125 (AMES!); s.coll. s.n. (AMES!) Kurzweil and Lwin 2014 Yukawa et al. 029689 (Holotype: TNS; Isotype: MBK, TI) Griffith 5236 (K!); Parish 110 (AMES) Kress et al. 2003 Listed as occurrence in Myanmar Xiaohua Jin et al. PT-2093 (PE!) Kurzweil and Lwin 2014 Reported from Myanmar Kress et al. 2003 Mon; Dawei (Tavoy), Tanintharyi Parish 296 (K!); Keenan et al. 5348 (E!) Ye Lwin Aung PT-7058 (PE!) Putao, Kachin Putao, Kachin; Mt. Victoria, Chin; Mt. Popa, Mandalay; Paunglaung Creek, Nay Pyi Taw-Shan Yoma; Taunggyi, Shan; Dawei (Tavoy), Tanintharyi Ye Lwin Aung PT-7069, PT7086, PT-7138, PT-7386, PT-7533, PT-7548, PT-7549, PT-7550, PT-7581, PT-7582, PT-7583, PT-7534 (PE!); Lugard s.n. (K!); Hooker s.n. (K!); Clarke 11810 (K!); Griffith 5045 (K!); Keenan et al. 1896 (E!); Khin Myo Htwe 24 (spirit collection-TNS), Khin Myo Htwe 45 (MBK), Tanaka et al. 036158 (MBK) Checklist of Myanmar orchid flora No. Species 834 Pholidota chinensis Lindl. 835 Pholidota convallariae (Parish & Rchb. f.) Hook. f. 836 Pholidota imbricata Lindl. 837 838 Pholidota missionariorum Gagnep. Pholidota pallida Lindl. 839 Pholidota protracta Hook. f. 840 Pholidota recurva Lindl. 841 Pholidota rubra Lindl. 842 843 844 Pinalia acervata (Lindl.) Kuntze Pinalia affinis (Griff.) Ormerod Pinalia amica (Rchb.f.) Kuntze 845 Pinalia apertiflora (Summerh.) A.N.Rao Pinalia bicolor (Lindl.) Kuntze Pinalia bractescens (Lindl.) Kuntze 846 847 848 849 850 851 Local distribution below Laugyang (Hlawgaw), Myitkyina, Kachin Putao, Kachin; Mt. Victoria, Chin; Mandalay; Mulayit & W. Dawna, Kayin; Mon; Tanintharyi Specimen citations Lulay 10016 (K!) Xiaohua Jin et al. PT-5271 (PE!); F.G. Dickason 7479, 8442 & 8602 (K!); R.C.F. Swinhoe 101 & R 119 (K!) Putao, Kachin; Mt. Victoria, Chin; Xiaohua Jin et al. PT-ET 132 Mt. Popa, Mandalay; Sagaing; Shan; (PE!); Ye Lwin Aung PT-7292, YePhyu, Tanintharyi; Yangon PT-7336, PT-7365, PT-7529 (PE!); Egerod B-20 (US); Rock 7457 (US); Khin Myo Htwe 69 (spirit collection-MBK, TNS) Listed as occurrence in Myanmar Kurzweil and Lwin 2014 Kyaikkahmi (Amherst), Mon Kingdon-Ward 20946 (BM!); Lace s.n. (E!) Putao, Kachin; Sagaing Xiaohua Jin et al. PT-2261, PT-2262 (PE!); Swinhoe K 75 (K!); Kingdon-Ward 21426 (BM!) Putao, Kachin; Mt. Victoria, Chin; Xiaohua Jin et al. PT-5276, Paungdaw Power Station, Dawei PT-5382 (PE!), Ye Lwin Aung (Tavoy), Tanintharyi PT-7017, PT-7108, PT-7122, PT-7574, PT-7078 (PE!); Keenan et al. 5389 (K!) & (E!) Chin, Kachin, Mandalay; Sagaing; Xiaohua Jin et al. PT-5253, Kyaikkami (Amherst), Mon PT-5343 (PE!); Ye Lwin Aung PT-7019 (PE!); Lace s.n. (E!); Kingdon-Ward 10179 & 13509 (BM!) Chin, Mandalay, Tanintharyi Daun 37 (K!); Forrest 176 (E!) Listed as occurrence in Myanmar Kurzweil and Lwin 2014 Mt. Victoria, Chin; Kachin; Ye Lwin Aung PT-7429, PTAlaungdaw Kathapa National Park, 7504, PT-7507, PT-7430, PTSagaing; Tanintharyi 7431, PT-7559 (PE!); R.C.F. Swinhoe K 74 (K!); KingdonWard 1557 (E!) Listed as occurrence in Myanmar Kurzweil and Lwin 2014 Mt. Victoria, Chin Bhamo, Kachin; Mandalay; Tanintharyi Pinalia brownei (Braid) Ormerod Mt. Popa, Mandalay; Alaungdaw Kathapa National Park, Sagaing; Chin Pinalia concolor (E.C.Parish & Putao, Kachin; Kayin; Mt. Popa, Rchb.f.) Kuntze Mandalay; Alaungdaw Kathapa National Park, Sagaing; Taunggyi, Shan; Tanintharyi Pinalia dasypus (Rchb.f.) Kuntze Pinalia densa (Ridl.) W.Suarez & Cootes 97 Upper Myanmar; Tanintharyi Tanintharyi Ye Lwin Aung PT-7505 (PE!) Swinhoe 20 & 87 (K!); McMillen 248 (NY!) & (US) Ye Lwin Aung PT-7444, PT7466 (PE!); s.coll. s.n. (K!) Xiaohua Jin et al. PT-5258 (PE!), Ye Lwin Aung PT-7443, PT-7459, PT-7460, PT-7461, PT-7462, PT-7465, PT-7467, PT-7468, PT-7470, PT-7471, PT-7472, PT-7046, PT-7232, PT-7233, PT-7235, PT-7592, PT-7593 (PE!) Forrest 26606 (E!); s.n. (K!) Kress et al. 2003 98 Ye Lwin Aung et al. / PhytoKeys 138: 49–112 (2020) No. Species 852 Pinalia eriopsidobulbon (E.C.Parish & Rchb.f.) Kuntze 853 854 855 856 857 858 Pinalia excavata (Lindl.) Kuntze Pinalia floribunda (Lindl.) Kuntze Pinalia globulifera (Seidenf.) A.N. Rao Pinalia graminifolia (Lindl.) Kuntze Pinalia lineoligera (Rchb.f.) Ormerod Pinalia merguensis Kuntze 859 Pinalia myristiciformis (Hook.) Kuntze 860 Pinalia mysorensis (Lindl.) Kuntze 861 Pinalia obesa (Lindl.) Kuntze 862 Pinalia ovata (Lindl.) W. Suarez & Cootes Pinalia pachyphylla (Aver.) S.C.Chen & J.J.Wood Pinalia praecox (Aver.) Schuit., Y.P.Ng & H.A.Pedersen Pinalia pumila (Lindl.) Kuntze Pinalia rimannii (Rchb.f.) Kuntze Pinalia shanensis (King & Pantl.) Ormerod Pinalia shiuyingiana Ormerod & Wood 863 864 865 866 867 868 869 Pinalia spicata (D.Don) S.C.Chen & J.J.Wood 870 Pinalia stricta (Lindl.) Kuntze 871 Pinalia sutepensis (Rolfe ex Downie) Schuit., Y.P.Ng & H.A.Pedersen 872 873 Pinalia tenuiflora (Ridl.) J.J.Wood Pinalia trilophota (Lindl. ex Jackson) Ormerod Pinalia xanthocheila (Ridl.) Suarez & Cootes Platanthera angustilabris Seidenf. 874 875 Local distribution Mt. Victoria & Haka, Chin; Mt. Popa, Mandalay; Mon; Alaungdaw Kathapa National Park, Sagaing; Tanintharyi Specimen citations Ye Lwin Aung PT-7408, PT7432, PT-7433, PT-7434, PT-7435, PT-7464, PT-7469, PT-7508, PT-7567 (PE!); Venning 17 (K!); Parish 281 (K!); C.E. Parkinson 2459 (K!); R.C.F. Swinhoe 56 (K!) Mt. Victoria, Chin Cooper 6088 (E!) Dawei (Tavoy), Tanintharyi Keenan et al. 5021 (E!) Putao, Kachin; Mt. Popa, Mandalay Ye Lwin Aung PT-7011, PT7012, PT-7022, PT-7037 (PE!) Upper Myanmar; Kachin Forrest 26955 & 27242 (K!) & (E!) & (US); Farrer 1109 (E!); Kingdon-Ward 1822 (E!); Forrest 24920 (NY!) Mogok, Mandalay Kress et al. 2003 YePhyu & Myeik (Mergui), Tanintharyi Mt. Victoria, Chin; West Dawna, Mon; YePhyu, Tanintharyi Ayeyarwaddy, Rakhine, Tanintharyi, Yangon Bago; Thaton & Kyaikkami (Amherst), Mon; Tanintharyi Mt. Victoria, Chin Putao, Kachin Putao, Kachin Mon, Tanintharyi Reported from Myanmar Listed as occurrence in Myanmar Hkrang Hka, Kachin State Ye Lwin Aung PT-7250, PT7257, PT-7258 (PE!); Griffith 1034, 5120 & 5381 (K!); Parish 52 (K!) Ye Lwin Aung PT-7541, PT7251 (PE!); Bogg B.G. 6 (K!); Parish 113 (K!) Kress et al. 2003 Swinhoe 81 (K!); Lace 5595 (K!) & (E!) Ye Lwin Aung PT-7506 (PE!) Xiaohua Jin et al. PT-6173, PT-6934 (PE!) Xiaohua Jin et al. PT-6779 (PE!) Kress et al. 2003 Kress et al. 2003 Kurzweil and Lwin 2014 Mon, Tanintharyi Listed as occurrence in Myanmar Kingdon-Ward 20970 (Holotype: AMES; Isotype: BM[photograph]) Xiaohua Jin et al. PT-5355 (PE!); Bogg B.G. 9 (K!); Kingdon-Ward 1847 (E!) Ye Lwin Aung PT-7072, PT7104 (PE!) R.C.F. Swinhoe 114 (K!); Khin Myo Htwe 46 (spirit collection-TNS), Tsujita et al. 036172, 036175 (spirit collection-TNS) Kress et al. 2003 Kurzweil and Lwin 2014 Recorded from Myanmar s.n. (K!) Listed as occurrence in Myanmar Kurzweil and Lwin 2014 Putao, Kachin; Bago; Chin; PyinOoLwin (Maymyo), Mandalay; Tanintharyi Putao, Kachin; Mon; Sagaing; Tanintharyi Mt. Popa, Mandalay Checklist of Myanmar orchid flora No. Species 876 Platanthera bakeriana (King & Pantl.) Kraenzl. 877 878 879 880 881 882 883 884 885 886 Specimen citations Kingdon Ward 9806 (AMES), Kingdon Ward 9931 (AMES); Kingdon-Ward 9931 (BM!) Kurzweil and Lwin 2014 Xiaohua Jin et al. PT-2176, PT-2182 (PE!) Xiaohua Jin et al. PT-2222 (PE!) Kingdon-Ward 9911 (BM!) Platanthera bhutanica K.Inoue Platanthera calceoliformis (W.W.Sm.) X.H.Jin, Schuit. & W.T.Jin Platanthera dulongensis X.H.Jin & Efimov Platanthera leptocaulon (Hook.f.) Soó Platanthera longibracteata Lindl. Platanthera minutiflora Schltr. Listed as occurrence in Myanmar Putao, Kachin Platanthera nematocaulon (Hook.f.) Kraenzl. Platanthera orbicularis (Hook.f.) X.H.Jin, Schuit. & Raskoti Platanthera pachycaulon (Hook.f.) Soó Platanthera roseotincta (W.W. Sm.) Tang & Wang Listed as occurrence in Myanmar Kress et al. 2003 Kingdon-Ward 9713 & 9803 (BM!) Kurzweil and Lwin 2014 Listed as occurrence in Myanmar Kurzweil and Lwin 2014 Adung valley, Putao, Kachin Kingdon Ward 9918 (AMES) & (BM!) Forrest 26959 (K!) & (E!) & (BM!) & (P!); Kingdon-Ward 3376 (E!); Forrest 25036 (E!); Farrer 1150 (E!); KingdonWard 9764 & 9834 (BM!) Forrest 25092 (E!); Farrer 1245 (E!); Kingdon-Ward 1874 (E!); Kingdon-Ward 21458 (BM!) Farrer 1125 (E!); KingdonWard 1816 (E!) 887 Platanthera stenantha (Hook.f.) Soo 888 Platanthera superantha (J.J.Wood) X.H.Jin, Schuit., Raskoti & Lu Q.Huang Platanthera uniformis Tang & F.T.Wang 889 Local distribution Adung valley, Putao, Kachin 99 890 Platanthera urceolata (Hook.f.) Bateman 891 892 Pleione albiflora Cribb & C.Z. Tang Pleione forrestii Schltr. 893 894 895 Pleione grandiflora (Rolfe) Rolfe Pleione hookeriana (Lindl.) B.S. Williams Pleione humilis (J.E. Sm.) D. Don 896 897 Pleione limprichtii Schltr. Pleione maculata (Lindl.) Lindl. Putao, Kachin Putao, Kachin Reported from Myanmar Putao, Kachin Kachin Putao, Kachin Upper Myanmar; Kachin Laktang & Putao, Kachin Putao, Kachin; valley of Seinghku, Upper Myanmar Reported from Myanmar Chin, Kachin, Sagaing, Shan Recorded from Myanmar Reported from Myanmar Putao, Kachin; Mt. Victoria, Chin Chin Putao, Kachin; Chin; Yangon Farrer 1910 (E!); KingdonWard 3566 & 1902 (E!); Kate Armstrong 1969 (NY!) Xiaohua Jin et al. PT-2225 (PE!); Kingdon-Ward 7524 (K!); Farrer 1314 (E!); Kingdon-Ward 21427 (E!); Kingdon-Ward 9949, 21427 & 13445 (BM!) Kress et al. 2003 Forrest 26656 (NY!) & (BM!) & (P!); Kingdon-Ward 443 (NY!) Rock 7512 (US) Kress et al. 2003 Xiaohua Jin et al. PT-ET 862, PT-2120, PT-2265 (PE!); Ye Lwin Aung PT-7515 (PE!); Kingdon-Ward 21966 (BM!) Kress et al. 2003 Keenan et al. 3367 (E!); Kate Armstrong 2172 (NY!); Kingdon-Ward 21515 (BM!) 100 Ye Lwin Aung et al. / PhytoKeys 138: 49–112 (2020) No. Species 898 Pleione praecox (J.E. Sm.) D. Don 899 Pleione scopulorum W.W. Sm. 900 901 Pleione yunnanensis (Rolfe) Rolfe Podochilus cultratus Lindl. 902 Podochilus khasianus Hook. f. 903 904 905 906 Podochilus lucescens Blume Podochilus microphyllus Lindl. Pogonia yunnanensis Finet Polystachya concreta (Jacq.) Garay & Sweet Pomatocalpa diffusum Breda Pomatocalpa spicatum Breda, Kuhl & Hasselt Ponerorchis chusua (D.Don) Soó 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 Local distribution Putao, Kachin; Mt. Victoria, Chin Tanintharyi Tanintharyi Nogmung, Kachin Mt. Popa, Mandalay Specimen citations Xiaohua Jin et al. PT-5205 (PE!); Ye Lwin Aung PT7490 (PE!); Kate Armstrong 1910 (NY!); s.coll. s.n. (E!); Kingdon-Ward 21508 (BM!) Xiaohua Jin et al. 10951 (PE!); Kingdon-Ward 9541 & 21065 (BM!) Farrer 849 (E!) Xiaohua Jin et al. PT-ET 135 (PE!), Xiaohua Jin et al. PT5350 (PE!) Xiaohua Jin et al. PT-ET 1233, PT-5249 (PE!), Ye Lwin Aung PT-7172 (PE!) Kerr 1004 (P!) Kress et al. 2003 Kingdon-Ward 9766 (BM!) Tanaka et al. 036162 (MBK) Recorded from Myanmar Tanintharyi Griffith 5235 (P!) Kress et al. 2003 Myitkyina, Kachin; Seinghku taung, Northern Myanmar Kingdon-Ward 7060 & 7230 (K!); Naw Mu Pa 17425 (K!); Farrer 1119 (E!); KingdonWard 3448 (E!); KingdonWard 9835 (BM!) Kingdon-Ward 21604 (AMES) Putao, Kachin Kachin Putao, Kachin; Mon; Tanintharyi Putao, Kachin; Bago; Mon Ponerorchis monantha (Finet) X.H. Kachin Jin, Schuit. & W.T. Jin Ponerorchis puberula (King & Pantl.) Putao, Kachin Kingdon-Ward 9826 & 21064 Verm. (BM!) Ponerorchis secundiflora (Kraenzl.) Recorded from Myanmar Kingdon-Ward 9978 (AMES!) X.H.Jin, Schuit. & W.T.Jin Ponerorchis tibetica (Schltr.) X.H.Jin, Kachin Forrest 26907 & 24656 (E!) & Schuit. & W.T.Jin (US); Forrest 26907 (P!) Porpax conica (Summerh.) Schuit., Recorded from Myanmar Parkinson 5288 (AMES) Y.P.Ng & H.A.Pedersen Porpax dickasonii (Ormerod) Haka District, Chin State F.G. Dickason 7359 Schuit., Y.P.Ng & H.A.Pedersen (Holotype: AMES) Porpax elwesii (Rchb.f.) Rolfe Thet Kal Kwet, YePhyu, Tanintharyi Tanaka et al. MY1731 & MY1732 (RAF, TNS) Porpax extinctoria (Lindl.) Schuit., Mon; Tanintharyi R.C.F. Swinhoe R 114 (K!) Y.P.Ng & H.A.Pedersen Porpax gigantea Deori Listed as occurrence in Myanmar Kurzweil and Lwin 2014 Porpax lacei (Summerh.) Schuit., Dawna Range, Kyaikkami (Amherst), Lace 4751 (K!) & (E!) Y.P.Ng & H.A.Pedersen Mon Porpax meirax (N.E. Br.) King & Mon, Tanintharyi Kress et al. 2003 Pantl. Porpax muscicola (Lindl.) Schuit., Tanintharyi Kress et al. 2003 Y.P.Ng & H.A.Pedersen Porpax parishii (Lindl. & Rchb.f.) Mon, Tanintharyi Kress et al. 2003 Rolfe Porpax pusilla (Griff.) Schuit., Listed as occurrence in Myanmar Kurzweil and Lwin 2014 Y.P.Ng & H.A.Pedersen Checklist of Myanmar orchid flora No. Species 924 Porpax summerhayesiana (A.D.Hawkes & A.H.Heller) Schuit., Y.P.Ng & H.A.Pedersen 925 Porpax ustulata (Parish & Rchb. f.) Rolfe 926 927 928 929 930 931 932 933 934 Pteroceras compressum (Blume) Holtt. Pteroceras leopardinum (Parish & Rchb. f.) Seidenf. & Smitin. Pteroceras teres (Blume) Holttum Renanthera coccinea Lour. 936 937 Renanthera hennisiana Schltr. Renanthera imschootiana Rolfe Renanthera isosepala Holttum Renanthera pulchella Rolfe Rhomboda abbreviata (Lindl.) Ormerod Rhomboda moulmeinensis (Parish & Rchb. f.) Ormerod Rhomboda wardii Ormerod Rhynchostylis gigantea Ridley 938 Rhynchostylis retusa Blume 939 940 Risleya atropurpurea King & Pantl. Robiquetia pachyphylla (Rchb. f.) Garay Robiquetia spathulata (Blume) J.J. Sm. Robiquetia succisa (Lindl.) Seidenf. & Garay Saccolabiopsis pusilla (Lindl.) Seidenf. & Garay Sarcoglyphis flava (Hook. f.) Garay Sarcoglyphis mirabilis (Rchb. f.) Garay Sarcoglyphis smithiana (Kerr) Seidenf. 935 941 942 943 944 945 946 101 Local distribution Recorded from Myanmar Specimen citations Kress et al. 2003 Putao, Kachin; Mon; Mt. Popa, Mandalay Sagaing, Tanintharyi Xiaohua Jin et al. PT-2042 (PE!), Parish 62 (K!); Tanaka et al. 036155 (MBK), Tanaka et al. 036187 (MBK, spirit collection-TNS) Kress et al. 2003 Mon, Tanintharyi Parish 269 (K!) Mon, Tanintharyi Chin; Alaungdaw Kathapa National Park, Sagaing; YePhyu, Tanintharyi Reported from Myanmar Mindat, Chin; Mandalay Listed as occurrence in Myanmar Recorded from Myanmar Listed as occurrence in Myanmar Kress et al. 2003 Ye Lwin Aung PT-7320, PT7436 (PE!) Kress et al. 2003 Kingdon-Ward 22182 (BM!) Kurzweil and Lwin 2014 Peeters s.n. (K!) Kurzweil and Lwin 2014 Moulmein, Mon; Tanintharyi Parish 237 (K!); Lobb s.n. (K!) Kachin Mt. Victoria, Chin; Mt. Popa, Mandalay; Paunglaung Creek, Nay Pyi Taw-Shan Yoma; Alaungdaw Kathapa National Park, Sagaing; Kalaw, Shan Kingdon-Ward 12889 (BM!) Xiaohua Jin et al. PT-5113 (PE!); Ye Lwin Aung PT-7391, PT-7425, PT-7427, PT-7571 (PE!); Lace s.n. (E!); White 245 (US); Khin Myo Htwe 72 (spirit collection-MBK, TNS), Tanaka et al. 036139 (MBK) Mt. Popa & PyinOoLwin (Maymyo), Ye Lwin Aung PT-7246 (PE!); Mandalay; YePhyu, Tanintharyi Lace s.n. (E!); Kaulback 249 (BM!); Mokim 6 (P!) & (US); Kurz 3243 (US); Khin Myo Htwe 032884 (MBK); Tanaka 036102 (MBK, spirit collection-TNS); Tanaka et al. 036139 (MBK, spirit collection-TNS) Upper Myanmar Kingdon-Ward 1780 (E!) Recorded from Myanmar s.coll. s.n. (K!) Mon; YePhyu, Tanintharyi Ye Lwin Aung PT-7355 (PE!) Reported from Myanmar Kress et al. 2003 Reported from Myanmar Kress et al. 2003 Mon, Tanintharyi Reported from Myanmar Kress et al. 2003 Kress et al. 2003 Alaungdaw Kathapa National Park, Sagaing Ye Lwin Aung PT-7424 (PE!) 102 Ye Lwin Aung et al. / PhytoKeys 138: 49–112 (2020) No. Species 947 Satyrium nepalense D. Don 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 Schoenorchis fragrans (Parish & Rchb. f.) Seidenf. & Smitin. Schoenorchis gemmata (Lindl.) J.J. Sm. Local distribution Mt. Victoria, Chin; Shan; Mt. Popa, Mandalay Mon, Tanintharyi Putao, Kachin Specimen citations Xiaohua Jin et al. PT-5221 (PE!); Kingdon-Ward 1870 (E!); Farrer 1261 (E!); Maung Gale 9164 (E!) Kress et al. 2003 Xiaohua Jin et al. PT-2081 (PE!); Forrest 26607 (E!) & (US); Kingdon-Ward 1556 (E!) Kress et al. 2003 Seidenfadenia mitrata (Rchb.f.) Tanintharyi Garay Sirindhornia monophylla (Collett & Chin; Kachin; Magway; Mandalay; Collett s.n. (K!); Collett 766 Hemsl.) H.A.Pedersen & Suksathan Sagaing; Nawngtaya, Shan (CAL) Smitinandia helferi (Hook. f.) Garay Mon, Tanintharyi Kress et al. 2003 Smitinandia micrantha (Lindl.) Alaungdaw Kathapa National Park, Ye Lwin Aung PT-7439 (PE!) Holtt. Sagaing Spathoglottis affinis de Vriese Mt. Popa, Mandalay; Dawei (Tavoy), Keenan et al. 929 (E!); Murata Tanintharyi; Rakhine et al. 021040 (MBK, TNS) Spathoglottis hardingiana Parish & Listed as occurrence in Myanmar Kurzweil and Lwin 2014 Rchb.f. Spathoglottis plicata Blume Mt. Popa, Mandalay Khin Myo Htwe 4 (spirit collection-TNS), Tanaka et al. 036160 (MBK) Spathoglottis pubescens Lindl. Bago; Chin; Kachin; Mt. Popa & Ye Lwin Aung PT-7237, PTPyinOoLwin (Maymyo), Mandalay; 7238 (PE!); Farrer 1262 (E!); Rakhine; Shan; Tanintharyi Lace 5515 (E!); MacGregor 819 & 820 (E!); KingdonWard 1848 (E!); KingdonWard 22567 (BM!); Belcher 628 & 816 (US) Spiranthes sinensis (Pers.) Ames Putao & Sumpra Bum, Kachin; Xiaohua Jin et al. PT-ET Mindat, Chin 988 (PE!); Lace 3141 (E!); Kingdon-Ward 1735 & 22035 (E!); Kingdon-Ward 22848, 22656 & 22035 (BM!) Stereochilus erinaceus (Rchb. f.) Mon, Tanintharyi Kress et al. 2003 Garay Stereochilus hirtus Lindl. Tanintharyi Kress et al. 2003 Stereochilus laxus (Rchb. f.) Garay Tanintharyi Kress et al. 2003 Stereosandra javanica Blume YePhyu, Tanintharyi Saw Lwin et al. TNRO 5 (SING, SING [spirit]) Stichorkis gibbosa (Finet) Wood Mon, Tanintharyi Kress et al. 2003 Strongyleria pannea (Lindl.) Schuit., PyinOoLwin (Maymyo), Mandalay; Forrest 25121 & 27028 (E!) Y.P.Ng & H.A.Pedersen Mt. Victoria, Chin & (NY!) & (BM!) & (US); Kingdon-Ward 1552 (E!); Cooper 6087 (E!); s.n. (K!) Taeniophyllum glandulosum Blume InnDawGyi Wildlife Sanctuary, Kurzweil & Lwin 2790 (SING Kachin State spirit) Tainia hennisiana (Schltr.) Reported from Myanmar Kress et al. 2003 P.F.Hunt Tainia latifolia (Lindl.) Rchb. f. Chin; Putao, Kachin; Mandalay; Xiaohua Jin et al. PT-2106 Sagaing; Upper Chindwin (PE!), Ye Lwin Aung PT-7142 (PE!); Glin 5761 (K!); Parish 253 (K!); Keenan et al. 3429 (E!) Checklist of Myanmar orchid flora No. Species 968 Tainia minor Hook.f. 969 970 971 972 Tainia wrayana (Hook.f.) J.J.Sm. Thecostele alata (Roxb.) Parish & Rchb. f. Thelasis carinata (Blume) Rchb. f. Thelasis khasiana Hook.f. 973 974 Thelasis micrantha (Brongn.) J.J. Sm. Thelasis perpusilla (C.S.P.Parish & Rchb.f.) Schuit. 975 976 Thelasis pygmaea (Griff.) Lindl. Thrixspermum calceolus (Lindl.) Rchb. f. Thrixspermum centipeda Lour. 977 981 Thrixspermum merguense (Hook. f.) Kuntze Thrixspermum scortechinii (Hook. f.) Ridl. Thrixspermum trichoglottis (Hook. f.) Kuntze Thunia alba Rchb. f. 982 983 984 985 Thunia bensoniae Hook. f. Thunia brymeriana Rolfe Thunia candidissima Rchb. f. Thunia pulchra Rchb.f. 986 Thuniopsis cleistogama L.Li, D.P.Ye & Shi J.Li 987 Tipularia josephi Rchb.f. ex Lindl. 988 Trachoma coarctatum (King & Pantl.) Garay Trichoglottis bipunctata (Parish & Rchb. f.) Tang & F.T. Wang Trichoglottis dawsoniana Rchb.f. Trichoglottis fasciata Rchb.f. Trichoglottis ramosa (Lindl.) Senghas 978 979 980 989 990 991 992 993 994 Trichoglottis ventricularis Kocyan & Schuit. Trichotosia aurea (Ridl.) Carr Local distribution Laktang, Kachin Reported from Myanmar Mon, Tanintharyi Reported from Myanmar Putao, Kachin 103 Specimen citations Kingdon-Ward 3229 (E!); Kingdon-Ward 20938 (BM!) Kress et al. 2003 Kress et al. 2003 Chin, Mon, Tanintharyi Reported from Myanmar Kress et al. 2003 Xiaohua Jin et al. PT-5274 (PE!), Ye Lwin Aung PT-7065, PT-7077, PT-7095, PT-7110 (PE!) Kurzweil and Lwin 2014 Xiaohua Jin et al. PT-2552 (PE!); R.C. Swinhoe 22 (K!); Brandis s.n. (K!) Kress et al. 2003 Kress et al. 2003 Putao, Kachin; Dawei (Tavoy), Tanintharyi Mon; YePhyu, Tanintharyi Xiaohua Jin et al. PT-ET 1322 (PE!); Keenan et al. 5450 (E!) Ye Lwin Aung PT-7348 (PE!) Mon Kress et al. 2003 YePhyu, Tanintharyi Ye Lwin Aung PT-7329 (PE!) Listed as occurrence in Myanmar Hpa-an, Kayin; Mon; Tanintharyi; Pyu Kyoon, Bago; Mandalay Mt. Victoria & Mindat, Chin; Xiaohua Jin et al. PT-ET 109 Putao, Kachin; Mt. Popa, Mandalay; (PE!), Xiaohua Jin et al. PTRakhine; Kalaw, Shan; YePhyu, 5116 (PE!); Ye Lwin Aung PTTanintharyi; Mon 7010, PT-7288 (PE!); Cooper 6068 (E!); Kingdon-Ward 22320 (BM!); Khin Myo Htwe 40 (spirit collection-TNS) Chin, Mon Kress et al. 2003 Recorded from Myanmar s.coll. s.n. (K!) Reported from Myanmar Kress et al. 2003 Putao, Kachin; Mon Qiang Liu 455 (HITBC!); Parish 5 & 199 (K!) Mt. Popa, Mandalay; Kanpetlet, Chin Cho et al. MM-0507 (HHU); Kang et al. 2019 [photographic record from Chin State] Kachin Kingdon-Ward 12991 & 13242 (BM!) Reported from Myanmar Kress et al. 2003 Mon, Tanintharyi Kress et al. 2003 Mon, Tanintharyi Tanintharyi Mt. Popa, Mandalay Reported from Myanmar Kress et al. 2003 Kress et al. 2003 Khin Myo Htwe 15 (spirit collection-TNS) Kress et al. 2003 Putao, Kachin Ye Lwin Aung PT-7146 (PE!) 104 Ye Lwin Aung et al. / PhytoKeys 138: 49–112 (2020) No. Species 995 Trichotosia crassicaulis (Hook.f.) Kraenzl. 996 Trichotosia dasyphylla (Parish & Rchb. f.) Krzl. 997 Trichotosia pauciflora Blume 998 Trichotosia pulvinata (Lindl.) Krzl. 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 Local distribution Putao, Kachin Specimen citations Xiaohua Jin et al. PT-2400 (PE!) Mt. Victoria, Chin; Bago; Tanintharyi Ye Lwin Aung PT-7569 (PE!); Kurz 1432 (K!) Tanintharyi Kress et al. 2003 Putao, Kachin; Bago; Tanintharyi Xiaohua Jin et al. PT-5345 (PE!) Trichotosia rotundifolia (Ridl.) Krzl. Mon, Tanintharyi Kress et al. 2003 Trichotosia velutina (Lodd. ex Lindl.) Tanintharyi Kress et al. 2003 Krzl. Trichotosia vestita (Wall. ex Lindl.) Tanintharyi Kress et al. 2003 Kraenzl. Tropidia angulosa Blume Putao, Kachin; Sagaing; Tanintharyi Xiaohua Jin et al. PT-2094 (PE!); McMillen 130 (US); Belcher B-C-956 (US) Tropidia curculigoides Lindl. Putao, Kachin; Mt. Popa, Mandalay Xiaohua Jin et al. PT-ET 1378, PT-ET 458 (PE!), Than Than Aye & Khin Myo Htwe 020642 (MBK), Murata et al. 020892 (MBK), Than Than Aye & Khin Myo Htwe 021361 (MBK, TNS) Tuberolabium elobe (Seidenf.) Putao, Kachin Xiaohua Jin et al. PT-ET 245 Seidenf. (PE!) Uncifera obtusifolia Lindl. Putao, Kachin; YePhyu, Tanintharyi Ye Lwin Aung PT-7304, PT7027, PT-7032, PT-7168 (PE!) Uncifera verrucosa Summerh. Recorded from Myanmar Kingdon-Ward 21171 (BM!) Vanda ampullacea ( Roxb. ) Falam, Chin; Mandalay; Mon Daun 20 (K!); Swinhoe 44 L.M.Gardiner (K!); Kurz 328 (BM!) Vanda bensonii Bateman Mt. Victoria & Haka, Chin; Bago; Ye Lwin Aung PT-7395, PTMt. Popa & PyinOoLwin (Maymyo), 7415, PT-7428, PT-7570 Mandalay; Mon; Alaungdaw Kathapa (PE!); Benson s.n. (K!); National Park, Sagaing; Tanintharyi Venning 51 (K!); Lace s.n. (E!); Kingdon-Ward 21803 (BM!); Khin Myo Htwe 12 (spirit collection-TNS); Tanaka et al. 036152 (MBK) Vanda brunnea Rchb. f. Falam, Chin; Putao, Kachin; Mt. Xiaohua Jin et al. PT-5346 Popa, Mandalay; Shan (PE!), Daun 3 (K!); Khin Myo Htwe 97 (spirit collectionMBK), Khin Myo Htwe 16 (spirit collection-TNS) Vanda coerulea Griff. ex Lindl. Chin; Kachin; PyinOoLwin Bogg B (K!); Lace s.n. (E!) (Maymyo), Mandalay; Shan; Yangon Vanda coerulescens Griff. Pyay (Prome), Bago; Falam, Chin; Ye Lwin Aung PT-7397, PTKachin; Mt. Popa & PyinOoLwin 7412, PT-7419, PT-7437 (Maymyo), Mandalay; Alaungdaw (PE!); Benson s.n. (K!); Collett Kathapa National Park, Sagaing; Shan 544 (K!); Daun 24 (K!); Samuel 13523 & 13559 (K!); Forrest 7450 (E!); Khin Myo Htwe 81 (spirit collectionMBK) & 89 (spirit collectionTNS) Vanda cristata Lindl. Putao, Kachin; Paunglaung Creek, Ye Lwin Aung PT-7322, PTNay Pyi Taw-Shan Yoma; YePhyu, 7372, PT-7373 (PE!); Xiaohua Tanintharyi Jin et al. PT-6869 (PE!) Checklist of Myanmar orchid flora No. Species 1013 Vanda curvifolia (Lindl.) L.M.Gardiner 1014 Vanda denisoniana Benson & Rchb. f. 1015 Vanda flabellata (Rolfe ex Downie) Christenson 1016 Vanda garayi (Christenson) L.M.Gardiner 1017 Vanda liouvillei Finet 1018 Vanda longitepala D.L.Roberts, L.M.Gardiner & Mote 1019 Vanda petersiana Schltr. 1020 Vanda rubra (Lindl.) L.M.Gardiner 1021 Vanda tessellata Hook. ex G. Don 1022 Vanda testacea (Lindl.) Rchb. f. 1023 Vanda vipanii Rchb. f. 1024 Vandopsis gigantea (Lindl.) Pfitzer 1025 Vandopsis shanica (Phillimore & W.W. Sm.) Garay 1026 Vandopsis undulata (Lindl.) J.J.Sm. 1027 Vanilla aphylla Blume 1028 Vanilla planifolia Andrews 1029 Vanilla siamensis Rolfe ex Downie 1030 Vrydagzynea albida (Blume) Blume 1031 Vrydagzynea nuda Blume 1032 Zeuxine affinis (Lindl.) Trimen 1033 Zeuxine flava (Lindl.) Benth. Zeuxine goodyeroides Lindl. Zeuxine gracilis (Breda) Blume Zeuxine longilabris (Lindl.) Trimen Zeuxine membranacea Lindl. Zeuxine nervosa (Wall. ex Lindl.) Trimen 1039 Zeuxine parvifolia (Ridl.) Seidenf. 1040 Zeuxine strateumatica (L.) Schltr. 1034 1035 1036 1037 1038 105 Local distribution Bago; Mandalay; Yangon; Dawei (Tavoy), Tanintharyi Reported from Myanmar Specimen citations Griffith s.n. (K!); Mokim 454 (BM!) & (P!) Kress et al. 2003 Taunggyi, Shan State Ye Lwin Aung PT-7598 (PE!) Alaungdaw Kathapa National Park, Sagaing Mt. Popa, Mandalay Ye Lwin Aung PT-7410 (PE!) Myitkyina District, Kachin State Reported from Myanmar Recorded from Myanmar Chin, Tanintharyi Mt. Popa, Mandalay; Bago; Mon; Rakhine; Tanintharyi Falam, Chin; Taunggyi, Shan Reported from Myanmar Reported from Myanmar Recorded from Myanmar Recorded from Myanmar Listed as occurrence in Myanmar Listed as occurrence in Myanmar Reported from Myanmar Putao, Kachin s.coll. s.n. (K!); Khin Myo Htwe 035062 (MBK), Khin Myo Htwe 6 (spirit collectionTNS), Khin Myo Htwe 20 (spirit collection-TNS), Khin Htwe 106 (spirit collectionMBK, TNS) Kermode 17331 (Holotype: K!) Kress et al. 2003 Griffith s.n. (P!) Kress et al. 2003 Khin Myo Htwe 79 (spirit collection-MBK), Khin Myo Htwe 78 & 83 (spirit collection-MBK, TNS), Khin Myo Htwe 82 (spirit collection-MBK, TNS) Kingdon-Ward 22961 (BM!); Abdul Khalil s.n. (BM!); s.coll. s.n. (K!) Kress et al. 2003 Kress et al. 2003 Forrest 13729 (E!) Parish 286 (K!) Kurzweil and Lwin 2014 Kurzweil and Lwin 2014 Kress et al. 2003 Xiaohua Jin et al. PT-6469 (PE!) Mt. Popa, Mandalay Kingdon-Ward 21758 (BM!); s.coll. s.n. (E!); Akiyama et al. 030199 (MBK); Ohi-Toma 035001 (MBK) Myitkyina, Kachin; Kanpetlet, Chin; Dickason 8448 (K!); Kermode Kalaw, Shan; Mt. Popa, Mandalay; 16609 (K!) Tanintharyi Bago; Dawna range, Kayin Lace 4606 (E!) Mon, Tanintharyi Kress et al. 2003 Galon Reserve, Katha, Sagaing Lace s.n. (E!) Mogok, Mandalay Lace 5070 (E!) Hpa-an or Myawaddy District, Kayin Burkill 24458 p.p. (K) State Listed as occurrence in Myanmar Kurzweil and Lwin 2014 PyinOoLwin (Maymyo), Mandalay; Swinhoe s.n. (K!); White 206 Shan & 207 (US) 106 Ye Lwin Aung et al. / PhytoKeys 138: 49–112 (2020) Acknowledgements Special thanks are due to the Guest Editor Yun-Hong Tan and three reviewers, Leonid Averyanov, Tian-Chuan Hsu and Jecmenica Vladimir, for their critical and helpful comments on our manuscript. This research was supported by grants from the Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences (Grant No. Y4ZK111B01) and the National Natural Science Foundation of China (Grant Nos. 31670194, 31620103902). References Aung YL, Jin XH (2018) Gastrodia kachinensis (Orchidaceae), a new species from Myanmar. In: Jin XH, Shui YM, Tan YH, Kang M (Eds) Plant diversity in Southeast Asia. PhytoKeys 94: 23–29. https://doi.org/10.3897/phytokeys.94.21348 Aung YL, Jin XH, Schuiteman A (2017) Coelogyne putaoensis (Orchidaceae), a new species from Myanmar. PhytoKeys 82: 27–34. https://doi.org/10.3897/phytokeys.82.13172 Aung YL, Mu AT, Jin XH (2018) Odontochilus putaoensis (Cranichideae, Orchidaceae), a new species from Myanmar. PhytoKeys 103: 19–26. https://doi.org/10.3897/phytokeys.103.25913 Blume CL (1858) Collection des orchidées les plus remarquables de l’archipel Indien et du Japon. Sulphe, Amsterdam, icons, 360 pp. https://doi.org/10.5962/bhl.title.154048 Brown R (1810) Prodromus florae Novae Hollandiae, et Insulae van Diemen. Johnson, London, 446 pp. Brown R (1820) Vanda roxburghii, chequer-flowered Vanda. Botanical Register 6: 506. Brown R (1821) Botanical Register; Consisting of Coloured Figures of Exotic Plants Cultivated in British Gardens; with their History and Mode of Treatment. London. Chase MW, Cameron KM, Freudenstein JV, Pridgeon AM, Salazar G, van den Berg C, Schuiteman A (2015) An updated Classification of Orchidaceae. Botanical Journal of the Linnean Society 177(2): 151–174. https://doi.org/10.1111/boj.12234 Chen XQ, Liu ZJ, Zhu GH, Lang KY, Ji ZH, Luo YB, Jin XH, Cribb PJ, Wood JJ, Gale SW, Ormerod P, Vermeulen JJ, Wood HP, Clayton D, Bell A (2009) Orchidaceae. In: Wu ZY, Raven PH, Hong DY (Eds) Flora of China (Vol. 25). Beijing: Science Press and St. Louis: Missouri Botanical Garden Press, 1–570. Chinese Virtual Herbarium (2018) Chinese Virtual Herbarium. http://www.cvh.ac.cn/ [accessed: 1 Jan 2018] Ding HB, Yang B, Zhou SS, Li R, Maw MB, Kyaw WM, Tan YH (2018) Hedychium putaoense (Zingiberaceae), a new species from Putao, Kachin State, Northern Myanmar. In: Jin XH, Shui YM, Tan YH, Kang M (Eds) Plant Diversity in Southeast Asia. PhytoKeys 94: 51–57. https://doi.org/10.3897/phytokeys.94.22065 Ding HB, Yang B, Zhou SS, Maw MB, Maung KW, Tan YH (2019) New contributions to the flora of Myanmar I. Plant Diversity 41: 135–152. https://doi.org/10.1016/j. pld.2019.05.002 Checklist of Myanmar orchid flora 107 Dressler RL (1993) Phylogeny and Classification of the Orchid Family. Dioscorides Press, Oregon, 314 pp. Forest Department (2015) National Biodiversity Strategy and Action Plan (2015–2020). Ministry of Environmental Conservation and Forestry, Nay Pyi Taw. Gardiner LM (2012) New combinations in the genus Vanda (Orchidaceae). Phytotaxa 61(1): 47–54. https://doi.org/10.11646/phytotaxa.61.1.4 Gardiner LM, Kocyan A, Motes M, Roberts DL, Emerson BC (2013) Molecular phylogenetics of Vanda and related genera (Orchidaceae). Botanical Journal of the Linnean Society 173(4): 549–572. https://doi.org/10.1111/boj.12102 GBIF (2019) Global Biodiversity Information Facility. https://www.gbif.org [accessed: 27 Apr 2019] Giam XL, Ng TH, Yap VB, Tan HTW (2010) The extent of undiscovered species in Southeast Asia. Biodiversity and Conservation 19(4): 943–954. https://doi.org/10.1007/s10531-010-9792-2 Govaerts RHA (2018) 101 Nomenclatural Corrections in Preparation for the Plants of the World Online (POWO). Skvortsovia 4(3): 74–99. Hinsley A, de Boer JH, Fay MF, Gale SW, Gardiner LM, Gunasekara RS, Kumar P, Masters S, Metusala D, Roberts DL, Veldman S, Wong S, Phelps J (2018) A review of the trade in orchids and its implications for Conservation. Botanical Journal of the Linnean Society 186(4): 435–455. https://doi.org/10.1093/botlinnean/box083 IUCN (2012) IUCN Red List Categories and Criteria: Version 3.1. Second edition. Gland, Switzerland and Cambridge. IUCN Standards and Petitions Committee (2019) Guidelines for Using the IUCN Red List Categories and Criteria. Version 14. Prepared by the IUCN Standards and Petitions Committee. http://www.iucnredlist.org/documents/RedListGuidelines.pdf [accessed: 9 Sep 2019] Jin XH, Kyaw M (2017) Gastrodia putaoensis sp. nov. (Orchidaceae, Epidendroideae) from North Myanmar. Nordic Journal of Botany 35: 730‒732. https://doi.org/10.1111/ njb.01581 Jin XH, Mint Z (2018) Petrosaviaceae, a new familial record of angiosperm from Myanmar. Redai Yaredai Zhiwu Xuebao 26(6): 677–678. Jin WT, Jin XH, Schuiteman A, Li DZ, Xiang XG, Huang WC, Li JW, Huang LQ (2014) Molecular systematics of subtribe Orchidinae and Asian taxa of Habenariinae (Orchideae, Orchidaceae) based on plastid matK, rbcL and nuclear ITS. Molecular Phylogenetics and Evolution 77: 41–53. https://doi.org/10.1016/j.ympev.2014.04.004 Jin XH, Tan YH, Quan RC (2018a) Taxonomic discoveries bridging the gap between our knowledge and biodiversity. In: Jin XH, Shui YM, Tan YH, Kang M (Eds) Plant diversity in Southeast Asia. PhytoKeys 94: 1‒2. https://doi.org/10.3897/phytokeys.94.23887 Jin XH, Zhu XY, Mint Z (2018b) Triuridaceae, a new familial record of Angiosperm from Myanmar. Redai Yaredai Zhiwu Xuebao 26(1): 79–81. Kang DY, Cho SH, Ong HG, Ling SM, Kyaw NO, Kim YD, Kurzweil H (2019) Two new generic records in the orchid flora of Myanmar. Korean Journal of Plant Taxonomy 49(1): 96–99. https://doi.org/10.11110/kjpt.2019.49.1.96 Koopowitz H, Iamwiriyakul P, Laohapatcharin S (2017) Paphiopedilum myanmaricum, a new species of slipper orchid (Cypripedioideae, Orchidaceae). Phytotaxa 324(1): 97–100. https://doi.org/10.11646/phytotaxa.324.1.9 108 Ye Lwin Aung et al. / PhytoKeys 138: 49–112 (2020) Kress WJ, DeFilipps RA, Farr E, Kyi YY (2003) A checklist of the trees, shrubs, herbs, and climbers of Myanmar (revised from the original works by JH Lace, R. Rodger, HG Hundley and U Chit Ko Ko on the “List of trees, shrubs, herbs and principal climbers etc. recorded from Burma”). Contributions from the United States National Herbarium 45: 1–590. Kurzweil H (2013) Calanthe punctata (Orchidaceae), a new species from southern Myanmar. Gardens’ Bulletin (Singapore) 65(2): 163–168. Kurzweil H, Lwin S (2012a) New records in the orchid flora of Myanmar. Thai Forest Bulletin (Botany) 40: 108–113. Kurzweil H, Lwin S (2012b) First record of Taeniophyllum (Orchidaceae) in Myanmar. Gardens’ Bulletin (Singapore) 64(1): 133–137. Kurzweil H, Lwin S (2014) A guide to orchids of Myanmar. Natural History Publications (Borneo), Kota Kinabalu, 196 pp. Kurzweil H, Lwin S (2015) New orchid records for Myanmar, including the first record of the genus Stereosandra. Gardens’ Bulletin (Singapore) 67(1): 107–122. https://doi. org/10.3850/S2382581215000125 Kurzweil H, Ormerod P (2018) Precursory studies on the orchid flora of Myanmar with one new species and thirty eight new distribution records. Rheedea 28(1): 01–15. https://doi. org/10.22244/rheedea.2018.28.1.01 Kurzweil H, Watthana S, Lwin S (2010) Phaius takeoi (Orchidaceae) Newly Recorded from Thailand and Myanmar. Gardens’ Bulletin (Singapore) 62(1): 105–109. Li HM, Ren C (2018) Cissampelopsis quinquesquamata (Asteraceae – Senecioneae), a new species from western Myanmar and northeastern India. Nordic Journal of Botany 01977. https://doi.org/10.1111/njb.01977 Lindley J (1821) Collectanea Botanica. Richard & Arthur Taylor, London. Lindley J (1826a) Orchidearum sceletos. R. Taylor, London, 27 pp. [Reprint in Linnaea 2: 527–532 (1827)] Lindley J (1826b) Orchidearum Sceletos. Commisit Johannes Lindley. Londini [London]. Lindley J (1853) Folia orchidacea 2: Sarcopodium, Sunipia, Acrochaene, Ione, Erycina, Epidendrum p.p. J. Matthews, London, 47 pp. Lindley J (1830a) The Genera and Species of Orchidaceous Plants. Ridgway, London, 60. https://doi.org/10.5962/bhl.title.120492 Lindley J (1830b) The Genera and Species of Orchidaceous plants. Ridgway, London, 61. https://doi.org/10.5962/bhl.title.120492 Lindley J (1838) Sertum orchidaceum. Ridgway, London, 6–10. Liu Q, Zhou SS, Li R, Zhang MX, Zyaw M, Lone S, Quan RC (2017) Bulbophyllum putaoensis (Orchidaceae: Epidendroideae; Malaxideae), a new species from Kachin State, Myanmar. Phytotaxa 305(1): 057–060. https://doi.org/10.11646/phytotaxa.305.1.9 Liu Q, Zhou SS, Jin XH, Pan B, Maung KW, Zyaw M, Li R, Quan RC, Tan YH (2018) Dendrobium naungmungense (Orchidaceae, Dendrobieae), a new species from Kachin State, Myanmar. In: Jin XH, Shui YM, Tan YH, Kang M (Eds) Plant diversity in Southeast Asia. PhytoKeys 94: 31–38. https://doi.org/10.3897/phytokeys.94.21337 Checklist of Myanmar orchid flora 109 Mittermeier RA, Turner WR, Larsen FW, Brooks TM, Gascon C (2011) Global biodiversity conservation: the critical role of hotspots. In: Zachos FE, Habel JC (Eds) Biodiversity Hotspots. Springer Publishers, London, 3–22. https://doi.org/10.1007/978-3-642-20992-5_1 Mu AT, Aung YL, Jin XH (2019) Liparis popaensis (Orchidaceae), a new species from Myanmar. Phytotaxa 413(1): 67–70. https://doi.org/10.11646/phytotaxa.413.1.8 Myers N, Mittermeier RA, Mittermeier CG, da Fonseca GAB, Kent J (2000) Biodiversity hotspots for conservation priorities. Nature 403(6772): 853–858. https://doi. org/10.1038/35002501 Natural History Museum (2014) Dataset: Collection specimens. Natural History Museum Data Portal. https://doi.org/10.5519/0002965 [accessed: 30 Apr 2019] Ng YP, Schuiteman A, Pedersen HÆ, Petersen G, Watthana S, Seberg O, Pridgeon AM, Cribb PJ, Chase MW (2018) Phylogenetics and systematics of Eria and related genera (Orchidaceae: Podochileae). Botanical Journal of the Linnean Society 186(2): 179–201. https:// doi.org/10.1093/botlinnean/box088 Ormerod P (2005) Notulae Goodyerinae (II). Taiwania 50(1): 1–10. Ormerod P (2012) Orchidaceous Additions to the Floras of China and Myanmar. Taiwania 57(2): 117–126. Ormerod P, Sathish Kumar C (2003) Orchidaceous Additions to the Flora of Burma (Myanmar). Rheedea 13: 43–50. Ormerod P, Wood EW (2010) A New Species of Pinalia (Orchidaceae: Eriinae) from Myanmar. Harvard Papers in Botany 15(2): 349‒351. https://doi.org/10.3100/025.015.0215 Pearce NR, Cribb PJ (2002) Flora of Bhutan (Vol. 3, Part 3): The Orchids of Bhutan. Royal Botanic Gardens, Edinburgh, 643 pp. Pedersen HÆ (1995) Thirteen new species of Dendrochilum (Orchidaceae), a new record from Burma, and a checklist of the genus in East Malesia. Nordic Journal of Botany 15(4): 381–402. https://doi.org/10.1111/j.1756-1051.1995.tb00168.x Pedersen HÆ, Suksathan P, Indhamusika S (2002) (publ. 2003) Sirindhornia, a new orchid genus from Southeast Asia. Nordic Journal of Botany 22(4): 391–404. https://doi. org/10.1111/j.1756-1051.2002.tb01390.x Pedersen HÆ, Kurzweil H, Suddee S, Cribb PJ (2011) Flora of Thailand (Vol. 12, Part 1), Orchidaceae 1 (Cypripedioideae, Orchidoideae, Vanilloideae). Forest Herbarium, Bangkok, 1‒302. Pedersen HÆ, Kurzwell H, Suddee S, de Vogel EF, Cribb PJ, Chantanaorrapint S, Watthana S, Gale SW, Seelanan T, Suwanphakdee C (2014) Flora of Thailand (Vol. 12, Part 2), Orchidaceae 2 (Epidendroideae P.P.: Neottieae, Tropidieae, Nervilieae, Gastrodieae, Thaieae, Calypsoeae, Arethuseae, Collabieae, Cymbidieae). Forest Herbarium, Bangkok, 303‒670. Pridgeon AM, Cribb PJ, Chase MW, Rasmussen FN (2001) Genera Orchidacearum, Volume 2, Orchidoideae (Part one). Oxford University Press, Oxford, 464 pp. Pridgeon AM, Cribb PJ, Chase MW, Rasmussen FN (2005) Genera Orchidacearum, Volume 4, Epidendroideae (Part one). Oxford University Press, Oxford, 672 pp. Pridgeon AM, Cribb PJ, Chase MW, Rasmussen FN (2014) Genera Orchidacearum, Volume 6, Epidendroideae (Part Three). Oxford University Press, Oxford, 544 pp. 110 Ye Lwin Aung et al. / PhytoKeys 138: 49–112 (2020) Raskoti BB, Jin WT, Xiang XG, Schuiteman A, Li DZ, Li JW, Huang WC, Jin XH, Huang LQ (2016) A phylogenetic analysis of molecular and morphological characters of Herminium (Orchidaceae, Orchideae): Evolutionary relationships, taxonomy, and patterns of character evolution. Cladistics 32(2): 198–210. https://doi.org/10.1111/cla.12125 Raskoti BB, Schuiteman A, Jin WT, Jin XH (2017) A taxonomic revision of Herminium L. (Orchidoideae, Orchidaceae). PhytoKeys 79: 1–74. https://doi.org/10.3897/phytokeys.79.11215 Roberts DL, Gardiner LM, Motes M (2008) Vanda longitepala (Orchidaceae): A new species from Burma. Kew Bulletin 63(3): 495–497. https://doi.org/10.1007/s12225-008-9049-3 Ruchisansakun S, Suksathan P, van der Niet T, Smets EF, Lwin S, Janssens SB (2018) Three new species of Impatiens (Balsaminaceae) from Myanmar. Phytotaxa 338(1): 063–074. https:// doi.org/10.11646/phytotaxa.338.1.5 Seidenfaden G (1992) The Orchids of Indochina. Opera Botanica 114: 1–502. Sodhi NS, Koh LP, Brook BW, Ng PKL (2004) Southeast Asian biodiversity: an impending disaster. Trends in Ecology and Evolution 19: 654‒660. https://doi.org/10.1016/j. tree.2004.09.006 Sodhi NS, Posa MR, Lee TM, Bickford D, Koh LP, Brook BW (2010) The state and conservation of Southeast Asian biodiversity. Biodiversity and Conservation 19(2): 317–328. https://doi.org/10.1007/s10531-009-9607-5 Swartz O (1799) Dianome epidendri generis Linn[J]. Nova Acta regiae Societatis Scientiarum upsaliensis 6: 61–88. Tan YH, Li DR, Chen Y, Li B (2017) Premna bhamoensis (Lamiaceae, Premnoideae), a new species from Kachin State, northeastern Myanmar. PhytoKeys 83: 93–101. https://doi. org/10.3897/phytokeys.83.12869 Tan YH, Li DR, Zhou SS, Chen YJ, Bramley GLC, Li B (2018) Premna grandipaniculata (Lamiaceae, Premnoideae), a remarkable new species from north Myanmar. In: Jin XH, Shui YM, Tan YH, Kang M (Eds) Plant diversity in Southeast Asia. PhytoKeys 94: 117–123. https://doi.org/10.3897/phytokeys.94.22033 Tanaka N, Yukawa T, Murata J (2010) New or Noteworthy Plant Collections from Myanmar (5): Dendrobium koyamae, a New Species in sect. Formosa (Orchidaceae). Acta Phytotaxonomica et Geobotanica 60(3): 71–174. Tanaka N, Yukawa T, Htwe KM, Murata J (2015) An Orchid Checklist of Mt. Popa, Central Myanmar. Bulletin of the National Museum of Nature and Science. Series B, Botany 41(2): 69–89. Tanaka N, Tagane S, Naiki A, Aung MM, Tanaka N, Dey S, Mood J, Murata J (2018) Contributions to the Flora of Myanmar I: Nine taxa of monocots newly recorded from Myanmar. Bulletin of the National Museum of Nature and Science. Series B, Botany 44(1): 31–39. The BioPortal of Naturalis Biodiversity Center (2019) National Herbarium of the Netherlands https://bioportal.naturalis.nl/ [accessed: 30 Apr 2019] Smithsonian National Museum of Natural History (2019) The Botany Collections. https:// collections.nmnh.si.edu/search/botany/?ti=3 [accessed: 27 Apr 2019] New York Botanical Garden (2019) The C. V. Starr Virtual Herbarium http://sweetgum.nybg. org/science/vh/ [accessed: 27 Apr 2019] Checklist of Myanmar orchid flora 111 Royal Botanic Garden Edinburgh (2019) The Herbarium Catalogue. https://data.rbge.org.uk/ search/herbarium/ [accessed: 27 Apr 2019] Royal Botanic Gardens Kew (2018) The Herbarium Catalogue. http://www.kew.org/herbcat [accessed: 12 Apr 2018] Harvard University Herbaria & Libraries (2019) The Index of Botanical Specimens. https:// kiki.huh.harvard.edu/databases/specimen_index.html [accessed: 27 Apr 2019] The International Plant Names Index (2012) The International Plant Names Index http:// www.ipni.org [accessed: 1 Jul 2018] The Plant List (2013) The Plant List Version 1.1. http://www.theplantlist.org/ [accessed: 5 Jul 2018] The Vascular Plants Muséum National d’Histoire Naturelle (2019) The Vascular Plants Muséum National d’Histoire Naturelle https://science.mnhn.fr/institution/mnhn/collection/p/ item/search/form?lang=en_US [accessed: 30 Apr 2019] Naturhistorisches Museum Wien (2019) The Virtual Herbaria. https://nhm-wien.ac.at/en/research/botany [accessed: 30 Apr 2019] Thiers BM (2019) Index Herbariorum: A global directory of public herbaria and associated staff, New York Botanical Garden’s Virtual Herbarium. http://sweetgum.nybg.org/ih/ [accessed: 12 Apr 2019] Thouars LMA (1822) Histoire particulière des plantes orchidées recueillies sur les trois îles Australes d’Afrique, de France, de Bourbon et de Madagascar. Arhus Bertrand, Paris, tab. 93. Tseng YH, Kim YD, Peng CI, Htwe KM, Cho SH, Kono Y, Chung KF (2017) Begonia myanmarica (Begoniaceae), a new species from Myanmar, and molecular phylogenetics of Begonia sect. Monopteron. Botanical Studies (Taipei, Taiwan) 58(21): 1–9. https://doi. org/10.1186/s40529-017-0175-9 Vermeulen JJ, Schuiteman A, De Vogel EF (2014) Nomenclatural changes in Bulbophyllum (Orchidaceae; Epidendroideae). Phytotaxa 166(2): 101–113. https://doi.org/10.11646/ phytotaxa.166.2.1 Watthana S, Fujikawa K, Kertsawang K (2015) First Record of Cremastra Lindl. (Orchidaceae) in Myanmar. Acta Phytotaxonomica et Geobotanica 66(3): 197–200. WCSP (2019) World Checklist of Selected Plant Families. Facilitated by the Royal Botanic Gardens, Kew. http://wcsp.science.kew.org/ [accessed: Jan 1, 2019] Webb CO, Slik JWF, Triono T (2010) Biodiversity inventory and informatics in Southeast Asia. Biodiversity and Conservation 19(4): 955–972. https://doi.org/10.1007/s10531010-9817-x Ya JD, Jin XH, Liu C (2019) Two new species of Cylindrolobus (Orchidaceae) from the eastern Himalayas. In: Cai J, Yu W-B, Zhang T, Li D-Z (Eds) Revealing of the plant diversity in China’s biodiversity hotspots. PhytoKeys 130: 107–113. https://doi.org/10.3897/phytokeys.130.33989 Yang B, Zhou SS, Liu Q, Maung KW, Li R, Quan RC, Tan YH (2017) Coelogyne magnifica (Orchidaceae), a new species from northern Myanmar. PhytoKeys 88: 109–117. https:// doi.org/10.3897/phytokeys.88.19861 Yang B, Ding HB, Zhou SS, Zhu X, Li R, Maw MB, Tan YH (2018a) Aristolochia sinoburmanica (Aristolochiaceae), a new species from north Myanmar. In: Jin XH, Shui YM, Tan 112 Ye Lwin Aung et al. / PhytoKeys 138: 49–112 (2020) YH, Kang M (Eds) Plant diversity in Southeast Asia. PhytoKeys 94: 13–22. https://doi. org/10.3897/phytokeys.94.21557 Yang B, Zhou SS, Ding HB, Li R, Maung KW, Tan YH (2018b) Two new species of Trivalvaria (Annonaceae) from northern Myanmar. In: Jin XH, Shui YM, Tan YH, Kang M (Eds) Plant diversity in Southeast Asia. PhytoKeys 94: 3–12. https://doi.org/10.3897/phytokeys.94.21553 Yao G, Cai J, Wu Y, Yang X, Oo TN, Moe AZ, Luo S (2018) Taxonomic studies of Glochidion (Phyllanthaceae) from the Indo-China Peninsula (I): G. shanense, a new species from Myanmar. PhytoKeys 96: 57–62. https://doi.org/10.3897/phytokeys.96.24497 Zhou SS, Tan YH, Jin XH, Maung KW, Zyaw M, Li R, Quan RC, Liu Q (2018a) Coelogyne victoria-reginae (Orchidaceae, Epidendroideae, Arethuseae), a new species from Chin State, Myanmar. PhytoKeys 98: 125–133. https://doi.org/10.3897/phytokeys.98.23298 Zhou SS, Tan YH, Li R, Quan RC, Maung KW, Liu Q, Sima YK (2018b) Magnolia kachinensis (Magnoliaceae), a new species from northern Myanmar. Phytotaxa 375(1): 092–098. https://doi.org/10.11646/phytotaxa.375.1.5