1897.] Gr. King — Materials for a Flora of the Malayan Peninsula. 147 



1. 0. scandens. 



2. 0. macrodisca. 



3. 0. gracilis. 



4. 0. nitida. 



the two upper teeth usually distinctly subconnate into an upper lip. 

 Corolla slightly exserted, petals subequal in length, all short-clawed ; 

 standard orbicular sometimes emarginate ; keel petals free, and wings 

 oblong, obtuse. Stamens free or only faintly subconnate at the very 

 base, much incurved and exserted when the flower expands ; anthers 

 oblong, versatile. Ovary subsessile ; style long, filiform, circinate at the 

 tip with an oblique stigma on the inner face. Pod thickly fleshy or 

 woody, or thinly woody, turgid 2-valved continuous within, the sutures 

 without wings. Seeds bright red, with or without arillus. Species 

 about 25, cosmopolitan in the tropics. 

 Climber; (leaves quite glabrous beneath) 

 Trees :— 



Seeds large with a black adnate basal aril ; (leaves mi- 

 nutely sparsely pubescent underneath) : — 



Panicles fastigiate, flowers white, pedicels stout ; pods 

 3 in. wide, seed 1 in. long 



Panicles lax, flowers yellow, pedicels slender; pods 1*25 

 in. wide, seed *75 in. long 

 Seeds small without any aril : — 



Leaves quite glabrous beneath ; (pod *6 in. broad, '4 in. 

 thick, valves thinly woody) 

 Leaves pubescent beneath : — 



Leaflets distinctly petioiulate ; pedicels shorter than 

 calyx; pod with thinly woody valves '6 in. broad, 

 •4 in. thick : — 



Leaflets (9-13) small (not exceeding 2'5 in.) shortly 

 acuminate (dark green thinly pubescent beneath)... 5. 0. parviflora. 

 Leaflets larger (4 in long) acute or subobtuse : — 

 Leaflets thinly pubescent beneath, pale-green, 

 7-9 ; branches thin ; panicles lax, bracts small ; 

 pubescence grey 



Leaflets densely pubescent beneath, dark-green, 



11-13 ; branches very thick ; panicles fastigiate, 



bracts conspicuous; pubescence rusty 



Leaflets sessile ; pedicels almost equalling calyx ; pod 



with thickly woody valves 135 in. wide, 1 in. thick ... 8. O. venosa. 



1. Ohmosia scandens Prain. A large climber over 100 feet long 



with stem 6-8 in. in diam. ; branches glabrous. Leaves 12-15 in. long ; 



leaflets 5-7, ovate-oblong or the terminal slightly obovate, coriaceous, 



bright-green, quite glabrous on both surfaces, apex shortly acuminate 



base rounded, 6-9 in. long, 2*5-3 in. across ; secondary nerves 13-18, 



fine ultimate reticulations rather distinct beneath. Racemes in ample 



terminal panicles, 12 in. long 6 in. across, with pale-tawny shortly 



puberulous rachis and branches, pedicels *2 in. long, pale-tawny silky, 



shorter than the calyx, with a minute deciduous basal and 2 subulate 



6. 0. sumatrana. 



7. 0. microsperma. 



