598 XLVii. LEGUMiNos^. [Dems. 



standard orbicular, back silky, base bicallose. Stamens mon- 

 adelphous. Ovary villous. Pod oblong to lanceolate, i- to 4-seeded 

 winged on upper suture, slightly on lower, 1-5 to 3*5 in. long, -75 in. 

 wide. Hab. Scrambling over rocks. Often cultivated by Chinese 

 as an insecticide. I am doubtful as to its occurring wild, though 

 it may be so in a few places where it grows over rocks, as at Penara 

 Bukit in Penang (Curtis) and in Perils. Distrih. Cambodia, Siam 

 to Malay isles. Native name : Akar Tuba. Use : For drugging 

 fish and killing insects on crops; a solution of the root bark 

 used. Poisonous. (See Gimlette, " Malay Poisons," p. 92.) 



(10) D. malaccensis Prain, I.e. 107. D. cuneifolia var. malac- 

 censis Benth. Journ. Linn. Soc. iv. Supp. 112. 



Climbing shrub 30 to 50 ft. long, glabrous. Leaves 9 to 15 in. 

 long, bright green ; leaflets 5 to 7 (or 9) sub-coriaceous elliptic, 

 base round, caudate-acuminate glabrous, 4 to 6 in. long, 2 to 2'5 in. 

 wide. Racemes solitary axillary, 4 to 6 in. long. Calyx •!$ in. 

 long, reddish campanulate, edge ciliate, sinuate. Corolla rose 

 pink (or white), '65 in. long; standard orbicular truncate or ob- 

 cordate, base bicallose. Stamens monadelphous. Ovary pubescent. 

 Pod oblong, winged or not, i- to 4-seeded, 2 to 3 in. long. Hab. 

 Forests, Singapore, Chan Chu Kang. Selangor, Ulu Selangor 

 (Goodenough) ; Sempang Track, Semangkok Pass. Perak, Coping 

 (Kunstler). Penang, Waterfall (Curtis). Disirib. Tenasserim, Siam, 

 Borneo. 



var. aptera Prain, l.c.c. and var. millettioides Prain. 



Only fruiting specimens of these are known. They differ from 

 D. malaccensis in having the pod thick and woody without any 

 wing, and in the specimen labelled millettioides pointed at both 

 ends and dehiscent, as in Pongamia ; the leaflets are rather more 

 coriaceous and round at the base, seldom even slightly narrowed. 

 In malaccensis the pod is quite thin, strongly nerved and winged, 

 the leaves thinner and often narrowed distinctly to the base. A 

 specimen from Wray, Simpang plains, Perak, while having the 

 thick pod of aptera, has a trace of wings, and the leaves are thin 

 and narrowed at the base. Till flowers of this variety aptera are 

 obtained, it must, I think, be placed as a variety of malaccensis, 

 but I expect it to turn out an entirely distinct plant. The speci- 

 mens were obtained from Perak, Ulu Bubong, Larut and Goping 

 by Kunstler. 



(11) D. Yappii Craib, Kew Bulletin, 1910, p. 21. 

 Branchlets grey, pustulate, when young hirsute. Leaves 8 in. 



long; leaflets 7, glabrous chartaceous, ovate or elliptic, cuspidate- 

 caudate, base rounded or narrowed, 3 to 4-25 in. long, i'6 to 2 in. 

 wide ; nerves prominent beneath, 10 pairs ; petiolule '2 in. long. 

 Racemes fascicled or solitary i to 3*5 in. long; rachis red-hairy. 

 Calyx truncate, puberulous 'i in. long. Corolla '25 in. long. 

 Standard orbicular emarginate. Stamens monadelphous; anthers 



