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粉红叉柱兰Cheirostylis jamesleungii

时间:2013-10-23 16:41来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ):粉红叉柱兰 学名( Scientific Name ): Cheirostylis jamesleungii S. Y. Hu et Barretto 英文名( English Common Name ): 别名( Chinese Common Name ): 异名( Synonym ): 科属( Family Genus ): 兰科Orchidaceae
中文名(Chinese Name):粉红叉柱兰
学名(Scientific Name):Cheirostylis jamesleungii S. Y. Hu et Barretto
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym):
科属(Family & Genus):兰科Orchidaceae叉柱兰属Cheirostylis
形态特征(Description):植株高约11厘米。根状茎匍匐,肉质,具节,呈毛虫状,长4-5厘米,粗3-6毫米。茎短,直立,具2-3枚小叶。叶片心形,长3-8毫米,宽3-8毫米,带红绿色,具细乳突,先端急尖,具网状脉。花茎细长,长10厘米,具4枚疏生的鞘状苞片,被稀疏的长柔毛;总状花序具2-3朵花;花苞片舟状,粉红色,膜质,具1脉,短于子房;子房长圆状倒卵形,粉红色,被疏的长柔毛,长5毫米,粗2毫米;花小;萼片长4毫米,中部以下合生成筒状,萼筒长2毫米,粉红色,外侧靠近基部被长柔毛,中部之上分离,离生部分三角形,长2毫米,外侧无毛;花瓣偏斜,披针形;唇瓣白色,长5毫米,基部囊状,囊内两侧各具1枚3裂的胼胝体,中部收狭具短爪,爪的边缘向内折成1条沟,前部扩大而其展平时为近长方形,长3毫米,宽5毫米,2裂,裂片近四方形,每个裂片边缘具5-6枚粗齿;蕊柱短,长1毫米,具2枚向前伸的臂状附属物;花药位于蕊喙的背面,先端钝;花粉团共同具1个长1毫米的粘盘,粘盘位于蕊喙的叉状2裂片之间;蕊喙叉状2裂;柱头2个,较大,位于蕊喙之基部两侧。花期3月。
分布(Distribution):产于我国香港。生于海拔约600米溪边阴处长了苔藓石头凹处中的潮湿土壤上。模式标本采自香港(Lantau Island) 。
用途(Use):
引自中国植物志英文版:FOC Vol. 25 Page 58, 62      
Cheirostylis jamesleungii S. Y. Hu & Barretto, Chung Chi J. 13(2): 13. 1976.
粉红叉柱兰 fen hong cha zhu lan | Orchidaceae  | Cheirostylis
Plants ca. 11 cm tall. Rhizome creeping, olive-green, moniliform, 4-5 × 0.3-0.6 cm. Roots minute, in rows along rhizome internodes. Stem erect, ca. 1 cm, with 2 or 3 small leaves. Leaves subrosulate, reddish green with dark green reticulate veins, cordate, 3-8 × 3-8 cm, base truncate, apex acute. Inflorescence ca. 10 cm, slender, with 4 sterile bracts, sparsely villous; rachis less than 1 cm, 2- or 3-flowered; floral bracts pink, cymbiform, shorter than ovary, membranous, 1-veined. Flowers small; ovary and pedicel pink, ca. 5 × 2 mm, sparsely villous. Sepals green, tinged with pink, ca. 4 mm, basal 1/2 connate and forming a tube, outer surface villous at base; free apical lobes triangular, ca. 2 mm. Petals white, lanceolate, oblique, ca. 4 × 1 mm; lip white, ca. 5 mm, 3-partite; hypochile saccate, containing 2 2- or 3-lobed calli; mesochile short, margin incurved; epichile dilated, subrectangular, ca. 3 × 5 mm, 2-lobed; lobes subsquare, margin wavy to shallowly 5- or 6-dentate, teeth broad, truncate with obtuse tips. Column 1.5-2 mm; stelidia acuminate, ca. 0.8 mm; anther ovoid, ca. 1 mm, apex obtuse; viscidium ca. 1 mm; rostellum arms ca. 1 mm. Fl. Mar.
● Damp soils and mossy rocks, in shade by streams; ca. 600 m. Hong Kong.




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