460 D. Prain — Some additional Leguminosee. [No. 2, 



c unci folia but pale yellowish-pink and larger ('65 in. long) ; ovules 4 (rarely 

 5). Pod larger ; in the typical form distinctly winged down both sutures, in both 

 varieties wingless. Possibly both varieties may prove specifically distinct. 



The species seems intermediate between D. cuneifolia which has 2 (rarely 3) 

 ovules, and D. montana Bth. from Java which has " about 8 ovules," and has leaves 

 like those of D. malaccensis. 



11. Derris microptera Benth, 



This is described by Mr. Bentham and accepted by Mr. Baker as having a 2- 

 callose standard. In Herb. Calcutta all the specimens with a 2-callose standard are 

 easily referable to D. cuneifolia, whereas all those that agree with fruiting speci- 

 mens of D. microptera have the standard ecallose. But the fruits of D. microptera 

 are decidedly dehiscent, so that the species might be placed in Millettia to which 

 genus indeed Mr. Gamble, Dr. King and Mr. Clarke have in the field referred speci- 

 mens of the plant collected by themselves. 



The species extends from Sikkim to the Khasia Hills where it has been collect- 

 ed by Griffith, by Oldham and by Clarke. The most marked feature of the species 

 is its horse-shoe shaped seeds. 



12. Derris elliptica Benth. 



Add to localities of F. B. I. : — Chittagong ; King's Collector ! 



To this species belong the Malayan specimens of " Millettia pachycarpa " men- 

 tioned in F. B. I. ii. 106. It is not the only Derris with silky petals, Derris eualata 

 Bedd. shows the same character though it does not have it so well marked. 



13b. Derris andamanica Prain, Journ. As. Soc. Beng. lxvi. 2. 104; 

 leaflets 7-9, oblong, rather large, acute, racemes copiously panicled, 

 with pubescent branches, pedicels twice as long as the calyx, corolla 

 large, pod finely permanently silky, wings along both sutures subequal. 



Andaman's ; Coco Group, Prain ! S. Andaman, King's Collectors ! 

 Nicobars ; King's Collectors ! 



A large creeper, with pale golden-brown-silky branches. Leaflets subcoriaceous 

 glabrous, 4—6 in. long, 2-3 in. wide, veinlets distinct. Flowers in axillary panicles 

 6-18 in. long, pedicels "3 in. long, fascicled or in racemes on produced nodes. Calyx 

 finely golden-brown-silky *15 in. Corolla white, '6 in. long, standard not callose. 

 Pod ligulate thin, 3-4 in. long by 1 in. wide, 2-3-seeded, each wing *12 in. wide. 



Nearest D. eualata but very distinct by its glabrous petals and its silky pod. 



34. Derris eualata Bedd. 



A species of this genus issued as Dalhergia sp. by Dr. Wallich {Cat. 5977) but 

 not accounted for by Mr. Bentham or in the F. B. I. is the same as a plant 

 collected by Col. Beddome at Nediwattam in 1881, and at the same place by Mr. 

 Gamble in 1889 ; the same plant was also collected by Col. Beddome in the Tini- 

 vclly hills. The plant agrees well with Col. Beddome's and Mr. Baker's descriptions 

 but it has silky petals ; it may be this species, at all events it is none of the others 

 described in the F. B. I. 



15. Derris Heyneana Benth. 



The limits of this species stand in need of definition. It is based on Wall. Cat. 

 5916 which is, unfortunately, not represented in the Calcutta collection. 



