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长足石仙桃Pholidota longipes S. C. Chen et Z. H. Tsi

长足石仙桃Pholidota longipes S. C. Chen et Z. H. Tsi

科名:兰科 Orchidaceae

属名:石仙桃属 Pholidota

《中国植物志》第18卷396页
  9. 长足石仙桃(植物分类学报)
  Pholidota longipes S. C. Chen et Z. H. Tsi in Acta Phytotax. Sin. 21 (3): 346. pl. 1 (4). 1983.
  根状茎较粗壮,直径4-8毫米,被鳞片状鞘;假鳞茎较密集,圆柱状,向顶端渐狭,长4-11.5厘米,中部宽3-4毫米,顶端生2叶。叶狭椭圆状披针形,纸质,长8-16厘米,宽1. 5-3厘米,先端长渐尖,具多脉,基部渐狭为柄;叶柄长1-3厘米。花葶生于幼嫩假鳞茎顶端,发出时其基部连同幼叶均为鞘所包,长6-10厘米;总状花序长4-5厘米,具7-9朵花;花苞片卵形,凹陷,长5-6毫米,宽2.5-3毫米,宿存,至少在花期未脱落;花梗和子房长1-1.2厘米;花白色,芬香,直径约1.2厘米;萼片卵形,长1. 1-1.2厘米,宽约5毫米,先端钝或具短尖,凹陷成舟状,背面具龙骨状突起,具5脉;花瓣卵状椭圆形,略短于萼片,先端钝;唇瓣长约1厘米,中部缢缩而成前后唇;后唇凹陷成囊状,长约5毫米,宽约2.5毫米,近基部有2条纵褶片;前唇长圆形,长约5毫米,宽约3毫米,先端具短尖,基部有3条长约1毫米的粗脊;蕊柱宽阔,长约3毫米,两侧有翅;翅在上部宽达1毫米,在顶端围绕药床;蕊喙宽舌状,长约1毫米,宽约2毫米。蒴果倒卵形,长约1. 8厘米,宽约1厘米,具3棱,棱上有狭翅;果梗长5-10毫米。花期1月,果期不详。
  产云南东南部(西畴、麻栗坡)。生于石灰岩沟谷阔叶林下阴湿岩石上,海拔1000-1400米。模式标本采自西畴。
形态特征:根状茎较粗壮,直径4—8毫米,被鳞片状鞘;假鳞茎较密集,圆柱状,向顶端渐 狭,长4—11.5厘米,中部宽3--4毫米,顶端生2叶。叶狭椭圆状披针形,纸质,长 8—16厘米,宽1.5—3厘米,先端长渐尖,具多脉,基部渐狭为柄;叶柄长1—3厘米。 花葶生于幼嫩假鳞茎顶端,发出时其基部连同幼叶均为鞘所包,长6—10厘米;总状花 序长4—5厘米,具7--9朵花;花苞片卵形,凹陷,长5--6毫米,宽2.5--3毫米,宿 存,至少在花期未脱落;花梗和子房长1—1,2厘米;花白色,芬香,直径约1.2厘米; 萼片卵形,长1.1—1.2厘米,宽约5毫米,先端钝或具短尖,凹陷成舟状,背面具龙 骨状突起,具5脉;花瓣卵状椭圆形,略短于萼片,先端钝;唇瓣长约l厘米,中部缢 缩而成前后唇;后唇凹陷成囊状,长约5毫米,宽约2.5毫米,近基部有2条纵褶片; 前唇长圆形,长约5毫米,宽约3毫米,先端具短尖,基部有3条长约1毫米的粗脊; 蕊柱宽阔,长约3毫米,两侧有翅;翅在上部宽达1毫米,在顶端围绕药床;蕊喙宽舌 状,长约1毫采,宽约2毫米。蒴果倒卵形,长约1.8厘米,宽约l厘米,具3棱,棱 上有狭翅;果梗长5—10毫米。 花期1月,果期不详。
产地分布:产云南东南部(西畴、麻栗坡)。生于石灰岩沟谷阔叶林下阴湿岩石上,海拔1000--1400米。模式标本采自西畴。
参考文献:Pholidota longipes S.C.Chen et Z.H.Tsi in Acta Phytotax.Sin,21(3):346. P1.1(4).1983.

《Flora of China》 Vol. 25 (2009)
Pholidota longipes  S. C. Chen & Z. H. Tsi Acta Phytotax. Sin. 21: 346. 1983.
长足石仙桃   chang zu shi xian tao
Rhizome 4-8 mm in diam., stout, with scaly sheaths. Pseudobulbs rather dense, cylindric, 4-11.5 cm × 3-4 mm, attenuate toward apex, apex 2-leaved. Leaf blade narrowly elliptic-lanceolate, 8-16 × 1.5-3 cm, papery, with many veins, long acuminate; petiole 1-3 cm. Inflorescence arising with young pseudobulb and young leaves from base of last pseudobulb, 6-10 cm; rachis 4-5 cm, 7-9-flowered; floral bracts persistent at least at end of flowering, ovate, concave, 5-6 × 2.5-3 mm. Flowers fragrant, white, ca. 1.2 cm in diam.; pedicel and ovary 1-1.2 cm. Sepals ovate, cymbiform, 11-12 × ca. 5 mm, 5-veined, obtuse or mucronate, dorsally carinate. Petals ovate-elliptic, slightly shorter than sepals, obtuse; lip ca. 1 cm, contracted at middle to form epichile and hypochile; hypochile saccate, ca. 5 × 2.5 mm, with 2 longitudinal lamellae near base; epichile oblong, ca. 5 × 3 mm, mucronate, base with 3 thickened ridges ca. 1 mm. Column ca. 3 mm, winged on both sides; rostellum broadly ligulate, ca. 1 mm. Capsule obovoid, ca. 1.8 × 1 cm, 3-ridged, ridges narrowly winged; fruiting pedicel 5-10 mm. Fl. Jan.
● Lithophytic on humid rocks in evergreen broad-leaved forests along limestone valleys; 1000-1400 m. SE Yunnan.
Curiously, this species was omitted from de Vogel’s monograph of Pholidota (Orchid Monogr. 3. 1988). In FRPS 18 (394-397. 1999), this species was placed in the 2-leaved P. sect. Chinenses (H. G. Reichenbach) de Vogel).Curiously, this species was omitted from de Vogel’s monograph of Pholidota (Orchid Monogr. 3. 1988). In FRPS 18 (394-397. 1999), this species was placed in the 2-leaved P. sect. Chinenses (H. G. Reichenbach) de Vogel).

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