286 S. Kurz — Contributions toioards a [No. 4, 



Bauhinia, L. 



Conspectus of Genera. 



* Trees or erect shrubs, without tendrils. 



Subg. 1. Pileostigma, Hochst. Stamens 10, all fertile. Style very short or wan- 

 ting, the stigma peltate. Flowers small. 



Calyx valvate, the segments all free ; glahrous trees, B. Malabarica. 



Calyx spathaceous ; young shoots and underside of leaves pubescent, ... .B. racemosa. 

 Subg. 2. Eu-Baaliinia. Stamens 10, of which 5 — 9 sterile or reduced to sta- 

 m in odes, very rarely all 10 fertile. 

 x Calyx spathaceous. 



+ Pods sessile or acuminate and barely stalked. 



Pods minutely tomentose, B. braehycarpa. 



Pods glabrous, B. polycarpa. 



+ + Pods long-stalked. 



Fertile stamen one only ; leaves shortly pubescent beneath, B. monandra. 



Fertile stamens 5 ; young shoots puberulous ; leaves glabrous, B. variegata. 



x x Calyx-lobes valvate, refiexed and free to the base, or only slightly 

 cohering. Pods long-stalked. 

 + Pods glabrous. Petals white or purple. 

 A shrub, the leaves minutely puberulous beneath ; calyx in bud terete, . .B. acuminata. 

 A tree, the leaves glabrous ; calyx angular in bud, irregularly bursting, . . B. purpurea. 

 + + Pods brown-pubescent. Flowers yellow, turning orange- 

 coloured. 

 Leaves velvety ; a small tree, B. elongata. 



* * Scandent shrubs, with hook-tendrils. 



Subg. 3. Phanera. Lour. Calyx-tube more or less elongate. Calyx-lobes valvate, 

 all expanding or becoming reflected, rarely the one or other cohering. Style more or 

 less elongate. 



x Ovary and pod glabrous. 



Pod stalked. Flowers racemose, large. 

 Leaves 2-foliolate, the leaflets free to the base ; bracts or bractlets none, . . . . B. diphylla. 

 Leaflets united into a 2-cleft leaf ; bractlets very large, almost leafy, ... ,B. involucellata. 

 O Pod sessile. Flowers rather small, corymbose. 



Lobes of the leaves rounded ; pedicels and calyx glabrous, B. glauca. 



Lobes of the leaves acuminate ; pedicels and calyx appressed silk-hairy, . .B. piperifolia^ 

 x x Ovary, and usually also the pod, villous, pubescent or puberulous. 

 Pod and ovary sessile. 



f Adult leaves glabrous, the lobes ac umin ate to acute and blun- 

 tish. 



Racemes elongate, appressed silk-hairy ; pedicels stout, B. macrostachya- 



Racemes corymb-like contracted, sparingly puberulous ; pedicels slender, . . . . B. ornata. 



f f Leaves tomentose or pubescent, the lobes rounded. 

 All parts brown-tomentose or pubescent ; petals an inch long ; racemes elongate, 



. . B. Vahlii. 

 O Pod and ovary stalked. 

 Flowers rose-coloured, in corymb-like racemes ; style shorter than the ovary, villous, 

 thick, B. rosea. 



