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细花虾脊兰Calanthe mannii

时间:2013-10-23 16:10来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ):细花虾脊兰 学名( Scientific Name ): Calanthe mannii Hook. f. 英文名( English Common Name ): 别名( Chinese Common Name ): 异名( Synonym ): Calanthe brachychila Gagnep. Alismorkis mannii (Hook.f.) Kuntze
中文名(Chinese Name):细花虾脊兰
学名(Scientific Name):Calanthe mannii Hook. f.
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym):Calanthe brachychila Gagnep.  Alismorkis mannii (Hook.f.) Kuntze  Alismorchis mannii (Hook. f.) Kuntze
科属(Family & Genus):兰科Orchidaceae虾脊兰属Calanthe
形态特征(Description):根状茎不明显。假鳞茎粗短,圆锥形,粗约1厘米,具2-3枚鞘和3-5枚叶。假茎通常长5-7厘米。叶在花期尚未展开,折扇状,倒披针形或有时长圆形,长18-35厘米,宽3-4.5厘米,先端急尖,基部近无柄或渐狭为长5-10厘米的柄,背面被短毛。花葶从假茎上端的叶间抽出,直立,高出叶层外,长达51厘米,密被短毛;总状花序长4-10厘米,疏生或密生10余朵小花;花苞片宿存,披针形,长2-4毫米,宽不及1毫米,先端渐尖,膜质,无毛;花梗和子房长5-7毫米,密被短毛;花小;萼片和花瓣暗褐色;中萼片卵状披针形或有时长圆形,凹陷,长7-9毫米,中部宽2.5-4.5毫米,先端急尖或近锐尖,具3-5条脉,背面密被短毛;侧萼片多少斜卵状披针形或有时长圆形,与中萼片近等长,先端急尖或近锐尖,具3条脉,背面密被短毛;花瓣倒卵状披针形或有时长圆形,比萼片小,长6-7毫米,中部以上宽1.2-2毫米,先端锐尖,具1-3条脉,无毛;唇瓣金黄色,比花瓣短,基部合生在整个蕊柱翅上,3裂;侧裂片卵圆形或斜卵圆形,长1.5-2毫米,宽1-1.5毫米,先端圆钝;中裂片横长圆形或近肾形,长1.5-2毫米,宽2.5-3毫米,先端微凹并具短尖,边缘稍波状,无毛;唇盘上具3条褶片或龙骨状脊,其末端在中裂片上呈三角形高高隆起;距短钝,伸直,长1-3毫米,粗约1毫米,外面被毛;蕊柱白色,长约3毫米,上端扩大,腹面被毛;蕊喙小,2裂;裂片近三角形,先端锐尖;药帽在前端不收狭,先端近截形;花粉团狭卵球形,近等大,长0.8毫米;粘盘小,近圆形。花期5月。
分布(Distribution):产江西、湖北,广东、广西、四川、贵州、云南和西藏。通常生于海拔2000-2400米的山坡林下。也分布于尼泊尔、锡金、不丹、印度西北部和东北部。
用途(Use):
引自中国植物志英文版FOC Vol. 25 Page 294, 303
Calanthe mannii J. D. Hooker, Fl. Brit. India. 5: 850. 1890.
细花虾脊兰 xi hua xia ji lan | Orchidaceae  | Calanthe
Alismorkis mannii (J. D. Hooker) Kuntze; Calanthe brachychila Gagnepain; C. pusilla Finet.
Plants 30-45 cm tall. Rhizome inconspicuous. Pseudobulbs conic, ca. 1 cm in diam., with 2 or 3 sheaths. Leaves 3-5, not well developed at anthesis, not deciduous; blade oblanceolate or oblong, 18-35 × 3-4.5 cm, plicate, abaxially puberulent, base subsessile or attenuate into a petiole-like stalk, apex acute; petiole-like base 5-10 cm, usually forming a pseudostem 5-7 cm. Scape arising from leaf axil, erect, to 51 cm, densely puberulent; rachis 4-10 cm, 10- or more flowered; floral bracts persistent, lanceolate, 2-4 mm, glabrous. Flowers small, dark brown, with golden yellow lip; pedicel and ovary 5-7 mm, densely puberulent. Sepals similar, ovate-lanceolate or oblong, concave, 7-9 × 2.5-4.5 mm, abaxially densely puberulent, 3-5-veined, apex acute; lateral sepals ± oblique. Petals obovate-lanceolate or oblong, 6-7 × 1.2-2 mm, glabrous, 1-3-veined, apex acute; lip adnate to entire length of column wings, 3-4.5 × 2.5-3 mm, 3-lobed; lateral lobes ovate, oblique, 1.5-2 × 1-1.5 mm, apex obtuse-rounded; mid-lobe transversely oblong or nearly reniform, 1.5-2 × 2.5-3 mm, margin slightly undulate, apex emarginate and mucronate in sinus; disk with 3 lamellae or ridges; lamellae extending from base of lip to apex of mid-lobe, expanding to semilunate swellings on mid-lobe; spur straight, 1-3 × ca. 1 mm, outside puberulent. Column white, ca. 3 mm, dilated at apex, ventrally puberulent; rostellum small, 2-lobed; pollinia narrowly ovoid, subequal in size, ca. 0.8 mm; viscidium suborbicular, small. Fl. May. 2n = 40.
Forests; 1300-2400 m. E Guangdong, NE Guangxi, SW Guizhou, SW Hubei, N Jiangxi, Sichuan, S and SE Xizang, NE Yunnan [Bhutan, India, Myanmar, Nepal, Vietnam].


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