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鞍叶羊蹄甲Bauhinia brachycarpa

时间:2018-08-13 20:30来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ):鞍叶羊蹄甲 学名( Scientific Name ): Bauhinia brachycarpa Wall. ex Benth. 英文名( English Common Name ): 别名( Chinese Common Name ): 马鞍叶羊蹄甲 异名( Synonym ): Bauhinia bonatiana Pamp. Bauhinia enig
中文名(Chinese Name):鞍叶羊蹄甲
学名(Scientific Name):Bauhinia brachycarpa Wall. ex Benth.
英文名(English Common Name):
别名(Chinese Common Name):马鞍叶羊蹄甲
异名(Synonym):Bauhinia bonatiana Pamp.  Bauhinia enigmatica Prain  Bauhinia faberi Oliv.  Piliostigma enigmaticum (Prain) Thoth.
科属Family & Genus):云实科,Caesalpiniaceae羊蹄甲属
形态特征Description):直立或攀援小灌木;小枝纤细,具棱,被微柔毛,很快变秃净。叶纸质或膜质,近圆形,通常宽度大于长度,长3-6厘米,宽4-7厘米,基部近截形、阔圆形或有时浅心形,先端2裂达中部,罅口狭,裂片先端圆钝,上面无毛,下面略被稀疏的微柔毛,多少具松脂质丁字毛;基出脉7-9(-11)条;托叶丝状早落;叶柄纤细,长6-16毫米,具沟,略被微柔毛。伞房式总状花序侧生,连总花梗长1.5-3厘米,有密集的花十余朵;总花梗短,与花梗同被短柔毛;苞片线形,锥尖,早落;花蕾椭圆形,多少被柔毛;花托陀螺形;萼佛焰状,裂片2;花瓣白色,倒披针形,连瓣柄长7-8毫米,具羽状脉;能育雄蕊通常10枚,其中5枚较长,花丝长5-6毫米,无毛;子房被茸毛,具短的子房柄,柱头盾状。荚果长圆形,扁平,长5-7.5厘米,宽9-12毫米,两端渐狭,中部两荚缝近平行,先端具短喙,成熟时开裂,果瓣革质,初时被短柔毛,渐变无毛,平滑,开裂后扭曲;种子2-4颗,卵形,略扁平,褐色,有光泽。花期5-7月;果期8-10月。
分布(Distribution):产四川、云南、甘肃、湖北,生于海拔800-2200米的山地草坡和河溪旁灌丛中。印度、缅甸和泰国有。
用途(Use):
引自植物志英文版:FOC Vol. 10 Page 7, 10
Bauhinia brachycarpa Wallich ex Bentham in Miquel, Pl. Jungh. 261. 1852.
鞍叶羊蹄甲 an ye yang ti jia| Fabaceae  | Bauhinia
Bauhinia altefissa H. Léveillé, p.p.; B. bonatiana Pam­panini; B. brachycarpa var. cavaleriei (H. Léveillé) T. C. Chen; B. brachycarpa var. densiflora (Franchet) K. Larsen & S. S. Larsen; B. brachycarpa var. microphylla (Oliver ex Craib) K. Larsen & S. S. Larsen; B. cavaleriei H. Léveillé; B. densiflora Franchet; B. enigmatica Prain; B. faberi Oliver; B. faberi var. megaphylla Tang & Wang; B. faberi var. microphylla Oliver ex Craib.
Shrubs, erect or spreading, or small trees, to 5 m tall, dioecious or androdioecious. Branches slender, puberulent when young, glabrous later. Stipules caducous, linear; petiole 1-6 cm; leaf blade suborbicular, 0.8-12 × 1-10 cm, papery or mem­branous, abaxially puberulent, adaxially glabrous or puberulent, primary veins 5-13, base truncate or shallowly cordate, apex bifid to ca. 1/2, lobes rounded at apex. Inflorescence a raceme, to 50-flowered, sometimes much condensed, terminal; bracts caducous, linear. Flower buds ellipsoid, puberulent. Hypan­thium turbinate, short. Calyx open as a spathe into 2 lobes. Petals white, obovate to oblanceolate, 7-8 mm, shortly clawed. Male flowers: fertile stamens 10 in 2 whorls; filaments 5-6 mm; reduced ovary small. Female flowers: reduced stamens 10; ovary hairy, shortly stalked; style stout; stigma peltate. Legume elliptic to oblanceolate, compressed, leathery, puberulent or nearly glabrous, dehiscent. Seeds 2-7, suborbicular, com­pressed. Fl. May-Jul, fr. Aug-Oct.
Open forests, dry mountain slopes; sea level to 3200 m. Chong­qing, Gansu, Guangxi, Guizhou, Hubei, Shaanxi, Sichuan, Xizang, Yun­nan [Laos, Myanmar, Thailand].
This is a polymorphic species, widely distributed in W China from Xishuangbanna in the south to Gansu in the north. At lower elevations and latitudes, as a small tree in open forests, its leaves can be much larger, but in habitats at higher elevations and latitudes, especially on slopes in dry river valleys, it is a small shrub no more than 30 cm tall, with leaves not exceeding 1 cm in diam.


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