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通麦虾脊兰Calanthe griffithii

时间:2013-10-23 16:08来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ): 通麦虾脊兰 学名( Scientific Name ): Calanthe griffithii Lindl. 英文名( English Common Name ): 别名( Chinese Common Name ): 异名( Synonym ): Calanthe tangmaiensis K. Y. Lang et Y. Tateishi Alismorkis g
中文名(Chinese Name):通麦虾脊兰
学名(Scientific Name):Calanthe griffithii Lindl.
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym):Calanthe tangmaiensis K. Y. Lang et Y. Tateishi  Alismorkis griffithii (Lindl.) Kuntze  Alismorchis griffithii (Lindl. & Paxton) Kuntze
科属(Family & Genus):兰科(Orchidaceae)虾脊兰属
形态特征(Description):假鳞茎粗短,近圆锥形,粗约2厘米,具2-4枚鞘和3-4枚叶。假茎长达16厘米。叶在花期全部展开,长圆形或长圆状披针形,长29-34厘米,宽4.5-7厘米,先端锐尖,基部收狭成楔形,两面无毛。花葶从叶丛中抽出,直立,高出叶层外,长达75厘米,密生短柔毛;总状花序长约19厘米,疏生多数花;花苞片卵状披针形,长4-5毫米,先端渐尖,背面疏被柔毛;花梗和子房长2.5厘米,密被短毛;花张开;萼片和花瓣浅绿色;中萼片长圆形,长约2厘米,宽1厘米,先端锐尖,具5-6条脉,背面被短柔毛;侧萼片与中萼片相似,但稍狭,先端短渐尖,具5条脉,背面被短柔毛;花瓣近倒披针形,长约17毫米,宽6毫米,先端锐尖,具3条脉,无毛;唇瓣比萼片短,基部无爪,几乎与整个蕊柱翅合生,3裂;侧裂片长圆形,长8毫米,宽4毫米,先端近斜截形;中裂片褐色,近心形或扇状椭圆形,长9毫米,宽12毫米,先端凹缺并具细尖,基部具爪,边缘波状;唇盘中央具1枚近三角形的褶片,两面无毛;距圆筒形,劲直,长约6毫米,末端钝,外面疏被短柔毛;蕊柱褐色,长8毫米,近无毛;药帽近半球形,前端收狭;花粉团倒卵球形,长约1.5毫米,几无花粉团柄,花期5月。
分布(Distribution):产西藏东南部(波密、通麦)。生于海拔约2000米的常绿阔叶林下。不丹、缅甸也有分布。
用途(Use):
引自中国植物志英文版:FOC Vol. 25 Page 295, 304
Calanthe griffithii Lindley in Lindley & Paxton, Paxt. Fl. Gard. 3: 37. 1852.
通麦虾脊兰 tong mai xia ji lan | Orchidaceae  | Calanthe
Calanthe anjanii Lucksom; C. tangmaiensis K. Y. Lang & Y. Tateishi.
Plants 30-60 cm tall. Pseudobulbs subconic, small, ca. 2 cm in diam., with 2-4 sheaths. Leaves 3 or 4, well developed and spreading at anthesis, not deciduous; blade oblong or oblong-lanceolate, 29-34 × 5-7 cm, apex acute; base contracted and cuneate, forming a pseudostem to 16 cm. Scape arising from leaf axil, erect, to 75 cm, densely puberulent; rachis ca. 19 cm, laxly many flowered; floral bracts persistent, ovate-lanceolate, 4-5 mm, abaxially sparsely puberulent, apex acuminate. Flowers greenish brown to yellowish green with brownish lip; pedicel and ovary ca. 25 mm, densely puberulent. Sepals similar, oblong, ca. 20 × 10 mm, abaxially puberulent, 5- or 6-veined, apex acute; lateral sepals slightly narrower than dorsal sepal. Petals suboblanceolate, ca. 17 × 6 mm, glabrous, 3-veined, apex acute; lip adnate to base of column wings, shorter than sepals, 3-lobed; lateral lobes oblong, ca. 8 × 4 mm, apex obliquely truncate; mid-lobe brown, subcordate or flabellate-elliptic, ca. 9 × 12 mm, margin undulate, apex emarginate and apiculate in sinus; disk with a single subtriangular lamella centrally; spur straight, cylindric, ca. 6 mm, outside sparsely puberulent, apex obtuse. Column brown, ca. 8 mm, nearly glabrous; rostellum 2-lobed; pollinia obovoid, ca. 1.5 mm. Fl. May.
Evergreen broad-leaved forests; ca. 2000 m. SE Xizang [Bhutan, NE India, Myanmar].


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