小蓝万代兰 Vanda coerulescens

中文名(Chinese Name):小蓝万代兰
学名(Scientific Name):Vanda coerulescens Griff.
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym):Aerides orthocentrum Hand.-Mazz.  Vanda parviflora Lindl.:S. Y. Hu  Vanda coerulescens var. lowiana Rchb.f.  Vanda coerulescens var. hennisiana Schltr.
科属(Family & Genus):兰科(Orchidaceae)万代兰属
形态特征(Description):茎长2-8厘米或更长,粗1-1.5厘米,基部具许多长而分枝的气根。叶多少肉质,二列,斜立,带状,常V字形对折,长7-12厘米,宽约1厘米,先端斜截形并且具不整齐的缺刻,基部具宿存而抱茎的鞘。花序近直立,长达36厘米,不分枝;花序轴长10-25厘米,疏生许多花;花序柄粗壮,粗2-4毫米,被3枚鞘;花苞片小,卵状三角形,长1.5-3毫米;花梗和子房均纤细,白色带淡蓝色,长约2.5厘米;花中等大,伸展,萼片和花瓣淡蓝色或白色带淡蓝色晕;萼片近相似,倒卵形或匙形,长15-17毫米,宽6-7毫米,先端钝,基部楔形;花瓣倒卵形,长15-17毫米,宽5-6毫米,先端钝,基部楔形;唇瓣深蓝色,3裂;侧裂片直立,近长圆形,长4毫米,宽2.3毫米,先端斜截;中裂片楔状倒卵形,长7-7.5毫米,宽约6毫米,先端扩大呈圆形,其中央稍凹缺,基部具一对胼胝体,上面通常具4-5条脊突,其中有2条较粗而在先端扩大成圆钝状并且颜色更深;距短而狭,伸直或稍向前弯,长约5毫米;蕊柱蓝色、粗短,长约5毫米;药帽淡黄色。花期3-4月。
分布(Distribution):产云南。生于海拔700~1600米的疏林中树干上。印度、缅甸、泰国也有。
用途(Use):
引自中国植物志英文版:FOC Vol. 25 Page 471, 473
Vanda coerulescens Griffith, Not. Pl. Asiat. 3: 352. 1851.
小蓝万代兰 xiao lan wan dai lan | Orchidaceae  | Vanda
Stems 2-8 cm, 1-1.5 cm in diam. Leaf blade 7-12 × 1-1.3 cm, fleshy, apex praemorse. Inflorescences 1 or 2, 14-36 cm, sparsely 10-16-flowered; peduncle 11-35 cm; rachis not distinctly zigzag, 10-25 cm; floral bracts ovate-triangular, 1.5-3 × 1.5-3 mm, apex acute. Flowers thinly textured, widely opening, 1.5-2.5 cm in diam.; pedicel and ovary white, tinged with pale blue, 1.5-3 cm; sepals and petals pale blue or white tinged with pale blue, not tessellated. Sepals similar, obovate or spatulate, 10-17 × 6-8 mm, base cuneate, apex obtuse. Petals oblanceolate-spatulate, 10-17 × 5-7 mm, base cuneate, apex obtuse; lip deep blue, shorter than sepals, spurred; lateral lobes erect, pale blue, suboblong, 3-4 × 1.5-2.3 mm, apex oblique; mid-lobe dark purple or blue, oblanceolate, 7-9 × 4-6 mm, base with a pair of calli, apex rounded and emarginate; disk centrally often with 3-5 thickened ridges and lateral ones thicker and dilated at apex; spur slightly curved, cylindric, ca. 5 mm, apex obtuse. Column blue, 5-7 mm; anther cap pale yellow, ca. 1.5 mm wide. Fl. Mar-Apr. 2n = 38, 40.
On tree trunks in open forests; 300-1600 m. S and SW Yunnan [NE India, Myanmar, N Thailand].
 小蓝万代兰 Vanda coerulescens

小蓝万代兰 Vanda coerulescens
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