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FOC | Family List | FOC Vol. 10 | Fabaceae | Bauhinia

43. Bauhinia touranensis Gagnepain, Notul. Syst. (Paris). 2: 181. 1912.

囊托羊蹄甲 nang tuo yang ti jia

Bauhinia genuflexa Craib; B. henryi Craib; B. rocheri H. Léveillé.

Lianas, woody, with tendrils. Tendrils compressed, slen­der, pubescent on one side. Stipules caducous; petiole 1-2 cm, glabrous; leaf blade suborbicular, 3.5-6 × 4-6.5 cm, papery, abaxially thinly pubescent at first, pubescent only on veins and axils of primary veins in mature leaves, adaxially glabrous, veins 7-9, base cordate, apex bifid to 1/6-1/5, lobes obtuse or rounded at apex. Inflorescence 3 or 4 corymbose racemes, terminal on lateral branches, 6-9 cm, rusty pubescent; peduncle 1.5-4 cm, with a tendril at base; bracts and bracteoles thread­like, 6-9 mm, acuminate. Pedicel slender, lowest ones to 20 mm, rusty pubescent. Flower buds ellipsoid to globose, rusty hirsute. Receptacle cylindric, 6-10 mm, base strongly enlarged on one side and appearing bladderlike, curved at straight angles with pedicels, pubescent; calyx lobes 5, ovate, 3-5 mm, acu­minate. Petals greenish or yellowish white, suborbicular, ovate, or obovate, ca. 6 mm, abaxially hairy at middle, prominently clawed. Fertile stamens 3; filaments glabrous. Staminodes 7. Ovary stalked, 4-5 mm, pubescent on sutures and stalk; style short; stigma capitate. Legume strap-shaped, compressed, 12-16 × 3-3.5 cm, indehiscent, glabrous, sutures slightly thick­ened. Seeds ellipsoid, compressed, ca. 8 × 6 mm; testa brown. Fl. Mar-Jun, fr. Aug-Oct.

Open forests and thickets in valleys and on slopes; 500-1200 m. Guangxi, Guizhou, Yunnan [Laos, Myanmar, Vietnam].


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