176 Gr. King — Materials for a Flora of the Malayan Peninsula. [No. 1, 



or 3 or 1, if fewer than 10 with or without sterile filaments ; filaments 

 free filiform; anthers versatile dehiscing longitudinally. Ovary stalked, 

 niany-ovuled ; style long or short, stigma small or large and peltate, 

 subterminal or oblique. Pod linear or oblong, flat, continuous within, 

 dehiscent or indehiscent. Seeds albuminous, funiculus usually broadly 

 triangular. Species 150, spread throughout the tropics. 

 Fertile stamens 10, (flowers large showy) : — 



Leaflets distinct ; calyx with a produced tube and a 5- 

 cleft limb (§ Lysiphyllum) ; a very extensive cirrhose 

 climber ... ... ... ... 1. B. diphylla. 



Leaflets connate ; calyx with a short tube jand a spatha- 

 ceous limb (§ Pauletia) ; shrubs: — 



Lobes of leaves rounded ; flowers yellow the upper 

 _ petal with a central purple blotch ; pod puberulous, 

 not ribbed along upper suture ... ... ... 2. B. tomentosa. 



Lobes of leaves subacute : flowers pure white ; pod 

 glabrous ribbed along each side of upper suture ... 3. B. acuminata. 



Fertile stamens 3 : — 



Calyx-tube produced (§ Phanrra) : — 



Buds narrowly clavate, the calyx-tube passing gradually 

 into the limb ; tendrils ; (flowers large showy) : — 

 Erect ; leaves glabrous above ; calyx-limb spatha- 

 ceous ; pods glabrous 



Climbing; leaves puberulous above; calyx-limb 

 dividing into equal segments ; pods pubescent 

 Buds widely clavate, with a rather abrupt transition 

 from tube to limb ; tendrils circulate more or less 

 plentiful : — 



Buds club-shaped — calyx-tube slightly ampullae- 

 formly dilated downwards, limb in bud obovate ; an- 

 thers much longer than broad ; (leaves of two connate 

 leaflets with rounded or subacute apices) : — 



Petals glabrous except on midrib and claw exter- 

 nally ; (flowers long-pedicelled in pyramidal ter- 

 minal corymbs) : — 



Stipules persistent; style glabrous ... ... 6. B. albo-lulea. 



Stipules deciduous ; style densely pubescent ... 7. B. semibifida. 

 Petals uniformly densely pubescent externally : — 

 Petals much longer than calyx-lobes : — 



Flowers long-pedicelled in pyramidal lateral 

 and terminal corymbs ; leaves pubescent, 

 (stipules large persistent orbicular) 

 Flowers short-pedicelled in dense terminal 

 corymbs ; leaves glabrous : — 



Stipules large persistent orbicular 

 Stipules small deciduous 

 Petals not longer than calyx-lobes ; (leaves pubes- 

 cent; corymbs terminal dense, flowers very 

 shortly pedicelled) ... ... ... 11. B. Ridleyi. 



4. B. purpurea. 



5. B. mollissima. 



8. B. Hullettii. 



9. B. Grijjithiana. 

 10. B. ferruginea. 



