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浅裂沼兰Crepidium acuminatum

时间:2013-10-23 16:58来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ):浅裂沼兰 学名( Scientific Name ): Crepidium acuminatum (D.Don) Szlach. 英文名( English Common Name ): 别名( Chinese Common Name ): 异名( Synonym ): :Malaxis acuminata D. Don Microstylis siamensis Rolf
中文名(Chinese Name):浅裂沼兰
学名(Scientific Name):Crepidium acuminatum (D.Don) Szlach.
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym)::Malaxis acuminata D. Don  Microstylis siamensis Rolfe ex Downie  Malaxis acuminata f. biloba (Lindl.) Tuyama  Malaxis acuminata var. biloba (Lindl.) Ames  Malaxis wallichii (Lindl.) Deb  Crepidium bilobum (Lindl.) Szlach. ex Lucksom  Microstylis pierrei var. rotundata Finet
科属Family & Genus):兰科(Orchidaceae)沼兰属Crepidium
形态特征Description):地生或半附生草本,具肉质茎。肉质茎圆柱形,长(1.5-)4-7厘米,直径4-6毫米,具数节,大部分包藏于叶鞘之内。叶3-5枚,斜卵形、卵状长圆形或近椭圆形,长(4-)6-12厘米,宽2.5-6厘米,先端渐尖,基部收狭成柄;叶柄鞘状,长2-4厘米,下半部抱茎。花葶直立,长12-43厘米,无翅;总状花序长3-9(-16)厘米,具10余朵或更多的花;花苞片披针形,长3-4(-6)毫米;花梗和子房长7-10毫米;花紫红色,为属中较大者,直径达1.5厘米;中萼片狭长圆形或宽线形,长8-9毫米,宽约2毫米,先端钝,两侧边缘外卷,具3脉;侧萼片长圆形,长6-7毫米,宽3-3.5毫米,先端钝,边缘亦外卷;花瓣狭线形,长8-9毫米,宽约0.8毫米,边缘外卷;唇瓣位于上方,整个轮廓为卵状长圆形或倒卵状长圆形,由前部和一对向后方延伸的尾组成,全长1-1.1厘米;前部中央有凹槽,先端2浅裂,裂口深1(-2)毫米;耳近狭卵形,约占唇瓣全长的2/5-1/5;蕊柱粗短,长1-1.5毫米。蒴果倒卵状长圆形,长约1.8厘米,宽约1厘米;果梗长约7毫米。花果期5-7月。
分布(Distribution):产台湾、广东、贵州和云南。生于林下、溪谷旁或荫蔽处的岩石上,海拔300-2100米。尼泊尔、锡金、印度、缅甸、越南、老挝、泰国、印度尼西亚、菲律宾和澳大利亚也有分布。
用途(Use):
引自中国植物志英文版:FOC Vol. 25 Page 230, 233
Crepidium acuminatum (D. Don) Szlachetko, Fragm. Florist. Geobot., suppl. 3: 123. 1995.
浅裂沼兰 qian lie zhao lan| Orchidaceae  | Crepidium
Malaxis acuminata D. Don, Prodr. Fl. Nepal. 29. 1825; Crepidium bilobum (Lindley) Szlachetko; M. acuminata f. biloba (Lindley) Tuyama; M. acuminata var. biloba (Lindley) Ames; M. allanii S. Y. Hu & Barretto; M. biloba (Lindley) Ames; M. pierrei (Finet) Tang & F. T. Wang; M. siamensis (Rolfe ex Downie) Seidenfaden & Smitinand; M. wallichii (Lindley) Deb; Microstylis biloba Lindley; M. pierrei Finet; M. siamensis Rolfe ex Downie; M. trigonocardia Schlechter; M. wallichii Lindley.
Plants terrestrial, sometimes epiphytic. Stem cylindric, (1.5-)4-7 cm, 4-6 mm in diam., fleshy, with several nodes, mostly enclosed in sheath. Leaves 3-5, obliquely ovate, ovate-oblong, or subelliptic, (4-)6-12 × 2.5-6 cm, base contracted into a sheathlike, amplexicaul petiole 2-4 cm, apex acuminate. Inflorescence erect; peduncle 12-43 cm, wingless; rachis 3-9(-16) cm, 10- or more flowered; floral bracts lanceolate, 3-4(-6) mm. Flowers purplish red, ca. 1.5 cm in diam.; pedicel and ovary 7-10 mm. Dorsal sepal narrowly oblong or broadly linear, 8-9 × ca. 2 mm, 3-veined, margin revolute, apex obtuse; lateral sepals oblong, 6-7 × 3-3.5 mm, margin revolute, apex obtuse. Petals narrowly linear, 8-9 × ca. 0.8 mm, margin revolute; lip superior, ovate-oblong or obovate-oblong in outline, 10-11 × 6-7 mm, shallowly 2-lobed, with a sinus 1(-2) mm deep, with a pair of auricles decurrent backward embracing column, adaxially with a central groove in apical half; auricles ± narrowly ovate, 1/5-2/5 length of lip. Column 1-1.5 mm, stout. Capsule obovoid-oblong, ca. 1.8 × 1 cm; fruiting pedicel ca. 7 mm. Fl. and fr. May-Jul. 2n = 30, 36, 42.
Forests, shaded rocks along valleys; 300-2100 m. Guangdong, SW Guizhou, ?Taiwan, SE Xizang, S Yunnan [Bhutan, Cambodia, India, Indonesia, Laos, Myanmar, Nepal, Philippines, Thailand, Vietnam; Australia].


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