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白花羊蹄甲Bauhinia acuminata

时间:2018-08-14 07:59来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ):白花羊蹄甲 学名( Scientific Name ): Bauhinia acuminata Bruce 英文名( English Common Name ): 别名( Chinese Common Name ): 马蹄豆 异名( Synonym ): Bauhinia linnaei Ali Bauhinia wituensis Harms Pauletia t
中文名(Chinese Name):白花羊蹄甲
学名(Scientific Name):Bauhinia acuminata Bruce
英文名(English Common Name):
别名(Chinese Common Name):马蹄豆
异名(Synonym):Bauhinia linnaei Ali  Bauhinia wituensis Harms  Pauletia tomentosa (L.)A.Schmitz  Bauhinia pubescens DC.  Alvesia bauhinioides Welw.  Bauhinia volkensii Taub.
科属(Family & Genus):云实科,Caesalpiniaceae羊蹄甲属
形态特征(Description):小乔木或灌木;小枝之字曲折,无毛。叶近革质,卵圆形,有时近圆形,长9-12厘米,宽8-12.5厘米,基部通常心形,先端2裂约达叶长的1/3-2/5,裂片先端急尖或稍渐尖,很少呈圆形,上面无毛,下面被灰色短柔毛;基出脉9-11条,与支脉及网脉在叶下面均极明显凸起;叶柄长2.5-4厘米,具沟,被短柔毛。总状花序腋生,呈伞房花序式,密集,少花(3-15朵);总花梗短,与花序轴均略被短柔毛;苞片与小苞片线形,具线纹,被柔毛;花蕾纺锤形,长约2.5厘米,略被毛或无毛,先端渐尖,顶冠以5条长约3毫米,锥尖、被毛的萼齿;萼佛焰状,一边开裂,顶端有5枚短的细齿;花瓣白色,倒卵状长圆形,长3.5-5厘米,宽约2厘米,无瓣柄;能育雄蕊10枚,2轮,花丝长短不一,长1.5-2.5厘米,下部1/3被毛,花药长圆形,黄色;子房具长柄,略被柔毛或近无毛,花柱长15-20毫米,柱头盾状,直径3毫米。荚果线状倒披针形,扁平,直或稍弯,先端急尖,具直的喙(宿存花柱),长6-12厘米,宽1.5厘米,内有隔膜,果颈长1厘米,果瓣革质,无毛,近腹缝处有1条隆起、锐尖的纵棱;种子5-12颗,直径8-10毫米,扁平。花期4-6月或全年;果期6-8月。
分布(Distribution):产云南、广西及广东。印度、斯里兰卡、马来半岛、越南及菲律宾也有。
用途(Use):
引自植物志英文版:FOC Vol. 10 Page 7, 9
Bauhinia acuminata Linnaeus, Sp. Pl. 1: 376. 1753.
白花羊蹄甲 bai hua yang ti jia | Fabaceae  | Bauhinia
Shrubs or small trees, to 3 m tall. Young branches zigzag, glabrous. Petiole 2.5-4 cm, pubescent; leaf blade ovate-cordate to cordate, 9-12 × 8-12.5 cm, subleathery, abaxially grayish pubescent, adaxially glabrous, primary veins 9-11, secondary and higher order veins protruding, base cordate, apex bifid to 1/3-2/5, lobes acuminate or slightly acute at apex or rarely rounded. Inflorescence a raceme, with few (3-15) flowers, axil­lary, appearing cymose; peduncle short, pubescent as inflores­cence axis; bracts and bracteoles linear, pubescent. Flower buds ca. 2.5 cm, acutely tapering and ending in 5 linear calyx teeth ca. 3 mm. Hypanthium tubular. Calyx spathe open on one side, shortly 5-toothed. Petals white, obovate-elliptic, 3.5-5 × ca. 2 cm, sessile. Fertile stamens 10 in 2 whorls, subequal, 1.5-2.5 cm, pubescent on lower 1/3; anthers yellow, oblong. Ovary prominently stalked, pubescent or almost glabrous; style 15-20 mm; stigma peltate, ca. 3 mm in diam. Legume straight or slightly curved, linear-oblanceolate, compressed, 6-12 × ca. 1.5 cm, with stalk ca. 1 cm, apex acuminate, beaked; valves leathery, glabrous, sharply ridged near suture. Seeds 5-12, com­pressed, 8-10 mm in diam. Fl. Apr-Jun, fr. Jun-Aug.
Guangdong, Guangxi, Yunnan [Cambodia, India, Indonesia, Laos, Malaysia (Peninsular), Philippines, Sri Lanka, Thailand, Vietnam].




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