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莎草兰Cymbidium elegans

时间:2013-10-23 17:05来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ):莎草兰 学名( Scientific Name ): Cymbidium elegans Lindl. 英文名( English Common Name ): 别名( Chinese Common Name ): 异名( Synonym ): Cyperorchis elegans (Lindl.) Blume 科属( Family Genus ): 兰科Orc
中文名(Chinese Name):莎草兰
学名(Scientific Name):Cymbidium elegans Lindl.
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym):Cyperorchis elegans (Lindl.) Blume
科属(Family & Genus):兰科Orchidaceae兰属Cymbidium
形态特征(Description):附生草本;假鳞茎近卵形,长4-9厘米,宽2-3厘米,包藏于叶基之内。叶6-13枚,二列,带形,长45-80厘米,宽1-1.7厘米,先渐尖或钝,通常略2裂,关节位于距基部4-10厘米处。花葶从假鳞茎下部叶腋内长出,通常长40-50厘米,下弯;总状花序下垂,具20余朵花;花苞片小,长2-3毫米;花梗和子房长1.2-2.1厘米;花下垂,狭钟形,几不开放,稍有香气,奶油黄色至淡黄绿色,有时略有淡粉红色晕或唇瓣上偶见少数红斑点,褶片亮橙黄色;萼片狭倒卵状披针形,长3.4-4.3厘米,宽7-9毫米;花瓣宽线状倒披针形,长3-4厘米,宽5-6毫米;唇瓣倒披针状三角形,长3-4厘米,3裂,基部与蕊柱合生约2-3毫米;侧裂片多少围抱蕊柱,常具很小的乳突,边缘无缘毛;中裂片较小,长8-10毫米,宽5-6毫米,中央有1个密生短毛的斑块,边缘稍波状;唇盘上的2条纵褶片从基部延伸至中裂片基部,在近末端处汇合并具短毛,在基部增粗并在两褶片间形成槽状凹陷;蕊柱长2.8-3.2厘米,腹面下部疏生微毛;花粉团2个,近棒状。蒴果椭圆形,长2-2.5厘米,宽1.5-2厘米。花期10-12月。
分布(Distribution):产四川西南部、云南西北部至东南部和西藏东南部。生于林中树上或岩壁上,海拔1700-2800米。尼泊尔、不丹、锡金、印度、缅甸也有分布。
用途(Use):
引自中国植物志英文版:FOC Vol. 25 Page 261, 272
Cymbidium elegans Lindley, Gen. Sp. Orchid. Pl. 163. 1833.
莎草兰 suo cao lan| Orchidaceae  | Cymbidium
Plants epiphytic or lithophytic, autotrophic. Pseudobulbs subovoid, bilaterally flattened, 4-9 × 2-3 cm, enclosed in persistent leaf bases. Leaves 6-16, distichous, lorate, 45-80 × 1-1.7(-2) cm, articulate 4-10 cm from base, apex acuminate or obtuse and usually slightly 2-lobed. Inflorescence arising from lower part of pseudobulb, usually arching, 40-50 cm; rachis pendulous or nodding, centrifugal or centripetal, densely 18-35-flowered; floral bracts small, 2-3 mm. Flowers slightly fragrant, pendulous, narrowly bell-shaped, not opening widely; pedicel and ovary 12-21 mm; sepals and petals cream-yellow to pale yellowish green, sometimes tinged pale pink; lip cream-yellow to pale yellowish green, occasionally with reddish spots, lamellae bright orange. Sepals narrowly obovate-lanceolate, 34-43 × 7-11 mm, apex acute. Petals broadly linear-oblanceolate, 30-40 × 5-8 mm, apex obtuse; lip oblanceolate-triangular, 30-40 × 4-8 mm, base fused to basal margins of column for 2-3 mm, 3-lobed; lateral lobes loosely clasping column, not ciliate; mid-lobe small, 6-10 × 5-8 mm, margin slightly undulate, apex slightly bilobed and incurved; disk minutely papillate on lateral lobes and densely pubescent at center of mid-lobe, with 2 longitudinal lamellae extending from base of lip to near base of mid-lobe; lamellae sparsely pubescent, convergent at their apices and with a longitudinal channel between them, sometimes each lamella with a lanceolate appendage 3-5 mm on outside below middle. Column 28-32 mm, puberulent toward base, narrowly winged; pollinia 2, subclavate-obovoid.
Trees in forests, cliffs; 1700-2800 m. SW Sichuan, SE Xizang, Yunnan [Bhutan, India, Myanmar, Nepal, N Vietnam].




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