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Bulbophyllum aphanopetalum

Bulbophyllum aphanopetalum

Bulbophyllum aphanopetalum Schltr., Bot. Jahrb. Syst. 39 (1906) 82

Type: Schlechter 15598 (holo B, lost); neo

Synonyms:

  • Peltopus aphanopetalus (Schltr.) Szlach. & Marg., Polish Bot. J. 46 (2001) 115
  • Cirrhopetalum capillipes Guillaumin, Notul. Syst. (Paris) 10 (1941) 67
    - Type: Pancher s.n. (New Caledonia, Mt. Koghi) (holo P)
  • Bulbophyllum capillipes (Guillaumin) N.Hallé, Bull. Mus. Hist. Nat. (Paris), sér. 3, Bot. 7 (1973) 23 (non Parish & Rchb.f.)

Rhizome creeping, 1-1.5 mm diam. Pseudobulbs ovoid, 0.3-0.8 cm apart, 0.7-1.2 by 0.4-0.7 cm, not or hardly flattened. Petiole 2-4 mm. Leaf blade elliptic to obovate, 2-6 by 0.8-1.4 cm, index 2.5-6, tip acute. Inflorescence 4.5-7.5 cm, 1-flowered. Peduncle 3-6.5 cm; bracts 2-3, the longest 3-4.5 mm. Floral bracts tubular, 2.5-3 mm, tip acute. Pedicel and ovary 9.8-11 mm, with the node 2-2.5 mm from the floral bract. Flowers moderately opening. Median sepal ovate, 5-9 by 2-3.5 mm, index 2.5-2.6, tip acute to slightly acuminate; thin; glabrous. Lateral sepals oblique, 5-10 by 2-4 mm, index 2.32.6; otherwise as the median sepal. Petals (ob)ovate to triangular, 0.1-0.7 by 0.3-0.6 mm, index 0.3-1.2, tip rounded to shortly acuminate; thin; glabrous. Lip approx. straight or slightly curved at the base, general outline ovate, 2.5-4.5 by 1-2.7 mm, index 1.52.5 (not spread), tip obtuse to shortly acuminate; rather thick; glabrous; adx. with a distinct basal concavity, basal teeth converging, not touching at the tip, together forming a transverse ridge, basal part of the lip concave from margin to margin up to approx. half-way the lip, gradually passing into the slightly convex top part of the lip; abx. approx. without a median ridge. Column from ovary to the tip of the rostellum 1.2-1.8 mm; rostellum distinctly protruding; stigma approx. orbicular, protruding at its base; column-foot with a distinct, moderately upwards pointing, rounded central knob above the attachment of the lip. Anther abx. with a wide ridge; front margin not protruding. (After Vermeulen, 1993)


Sepals and petals yellowish green to pale yellow. Lip yellow.

Epiphyte in lower montane forest; 200-1200 m.

Malesia (New Guinea), New Caledonia, Fiji.

Papua (Indonesia); Papua New Guinea; see map

Distribution of Bulbophyllum aphanopetalum in New Guinea

Intermediate growing epiphyte.

  • Vermeulen, J.J., Orchid Monogr. 7 (1993) 153, fig. 104
  • Family Orchidaceae
  • Subfamily Epidendroideae
  • Tribe Dendrobieae
  • Subtribe Bulbophyllinae
  • Genus Bulbophyllum
  • Section Peltopus
  • Species Bulbophyllum aphanopetalum

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Bulbophyllum aphanopetalum

Overview picture of Bulbophyllum aphanopetalum Schltr.

Bulbophyllum aphanopetalum

Bulbophyllum aphanopetalum Schltr., plant habit, photo P. Jongejan, collection Royal Botanic Gardens, Kew, cult. P. Jongejan 3263

Bulbophyllum aphanopetalum

Bulbophyllum aphanopetalum Schltr., flower, oblique lateral view, photo P. Jongejan, collection Royal Botanic Gardens, Kew, cult. P. Jongejan 2539

Bulbophyllum aphanopetalum

Bulbophyllum aphanopetalum Schltr., flowers, oblique front view, photo P. Jongejan, collection Royal Botanic Gardens, Kew, cult. P. Jongejan 3263

Bulbophyllum aphanopetalum

Bulbophyllum aphanopetalum Schltr., flower detail, column and lip base, oblique front view, photo P. Jongejan, collection Royal Botanic Gardens, Kew, cult. P. Jongejan 3263

Bulbophyllum aphanopetalum

Bulbophyllum aphanopetalum Schltr., flower detail, centre of flower, oblique lateral view, photo P. Jongejan, collection Royal Botanic Gardens, Kew, cult. P. Jongejan 3263

Bulbophyllum aphanopetalum

Bulbophyllum aphanopetalum Schltr., flower, oblique front view, photo E.F. de Vogel, Leiden cult. 940506

Bulbophyllum aphanopetalum

Bulbophyllum aphanopetalum Schltr., photo E.F. de Vogel, Leiden cult. 930878

Bulbophyllum aphanopetalum

Bulbophyllum aphanopetalum Schltr., photo E.F. de Vogel, Leiden cult. 930878

Bulbophyllum aphanopetalum

Bulbophyllum aphanopetalum Schltr., Orchid Monogr. 7 (1993) 153, fig. 104, J.J. Vermeulen, drawing, plant habit and flower analysis, based on a-c,e-j Jongejan 3263 (L); d Jongejan 2539 (L)