43 



carpels many, elongato and constricted between the seeds or biiccate. 

 Seeds few or many. — DiSTRiB. Tropi(!al Asia and Africa; species about 50. 

 Sect. 1. Desmos, H. f. and T. Petals 6, in two rows, ripe carpels jointed. 

 Flowers solitary and always axillary : leaves 



elliptic-oblong to oblong-lanceolate ... \. JJ. Dunalii. 



Flowers solitary, and extra-axillary, terminal 

 or leaf-opposed. 



Flower-peduncles 4 to 6 in. long, slender 2. Z7. Desmos. 

 Flower-peduncles 1 to 2 in long. 



Lower surfaces of leaves glaucous ; 

 petals glabrous or at most sparsely 

 adpressed-sericeous ... ... 3. U. discolor. 



Flower-peduncles from 5 to 1 in. long. 



Leaves more or less oblong or ovate or 

 lanceolate, rufous-pubescent or to- 

 mentose beneath ... ... 4:. JJ. dtimosa. 



Sect. II. Dasymaschalon. Petals 3, or sometimes only 2 : the inner 

 row always absent ; ripe carpels jointed. 



Flowers 8'5 to 6 in. long ; petals linear-lanceo- 

 late, caudate-acuminate, not constricted be- 

 tween claw and limb ... ... 5. U. longijlora. 



Flowers 1"5 to 3*5 in. long ; petals from ovate 

 to lanceolate, more or less constricted above 

 the claw ... ... ... 6. U.Basymanchala 



Sect. III. Stenopetalon. Petals 6 in two rows, usually very narrow : 

 carpels baccate, not jointed. 



FlowerB solitary ... ... ... 7. U. Wrayi. 



Flowers in fascicles from the larger branches 

 or stem. 



Petals linear-oblong, 1 to 15 in. long; ripe 

 carpels globose, glabrous, their stalks 1 

 to J"5 in. long ... ... ... 8. JJ. desmantha. 



Petals narrowly linear, 3 to 3"5 in. long : 

 ripe carpels globose, densely rufous- 

 velvetty, shortly stalked ... ... 9. JJ. crinita. 



Petals narrowly linear, 1*25 to 3 in. long: 

 ripe carpels sub-globular or bluntly ovate, 

 softly tomentose, ultimately sub-glabrous, 

 sub-sessile ... ... ... 10. Z7. stenopelnJa. 



1. Unona Dunalii, Wall. Cat. 6425. A climber 60 to 100 feet 

 long; young branches slender, rather pale, sub-rngose, lenticellate, 

 glabi-ous. Leaves thickly membranous, pale when dry, elliptic-oblong 

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