1897.] D. Prain — Some additional Leguminosae. 429 



5. "V IGNA yexillata Benth. 



To the synonyms of this species should apparently be added Dolichos umbellatus 

 Thunb. Trans. Linn. Soc. ii. 339 ; at all events the Japanese species identified by M. 

 Maximowicz and other authorities on the botany of Japan with D. umbellatus *ia 

 identical with this. The Index Kewensis points out that the oldest name for this 

 as a Vigna is V. capensis Walp. (Linniea xiii. 533), but it seems a pity to replace the 

 familiar name V. vexillata, (which moreover retains the oldest specific epithet, since 

 this is Phaseolus vexillatus Linn.), by one so unfamiliar and so inappropriate as the 

 name V. capensis. 



6. VlGNA BRACHYCARPA Kurz. 



Of this there is but one specimen in Herb. Calcutta ; it is in ripe fruit, and all 

 that is known of its flowers is from Mr. Kurz's field-note that they were small and 

 were yellow. The fruits and leaves, however, amply suffice to show that the plant is 

 only a form of Phaseolus sublobatus Roxb. (P. trinervius Heyne). 



8. VlGNA DOLICHOIDES Bak. 



This species is not a Vigna. It is certainly congeneric with Vigna lucens Bak., 

 but it is at the same time equally certainly congeneric with Phaseolus velutinus Grah., 

 and the writer has proposed to raise Mr. Bentham slyiA Sir J. Hooker's section Dysolo- 

 bium to the rank of a genus in order to accommodate these three species and another 

 obviously congeneric one that Mr. Kurz has in MSS. named Vigna tetragona, but that 

 Mr. Baker has tentatively placed in Psophocarpus. 



9. Vigna pilosa Bak. 



Add to localities of F. B, I. : — Andamans ; very common, King's 

 Collectors ! 



9b. Vigna Clarkei Prain ; stems slender, finely pubescent with 

 reflexed hairs, leaflets membranous narrowly lanceolate, entire, with 

 a few adpressed hairs on both surfaces, racemes few-fid. peduncled, 

 corolla small, pod slender dotted, with dense adpressed rusty-pubes- 

 cence. 



Foot op Eastern Himalaya; Dalkajhar in the Sikkim Terai, 

 Clarke n. 37032 ! Mahakalguri in the Alipur Duars, Heawood, 74 ! 124 ! 

 Branches slender but firm, densely reflexed-pubescent as are petioles and 

 peduncles. Stipules minute lanceolate, leaflets 4 in. long, under '5 in. wide. Racemes 

 •5 in. or less, on peduncles 1-3 in. long ; pedicels sparsely reflexed-pubescent 1 in. 

 long, bracts and braoteoles minute. Calyx *25 in., teeth pubescent triangular as long 

 as tube. Corolla '4 in., yellow. Pod 3 in. long, 2 in. in diam., subcylindric, densely 

 adpressed-pubescent, 6-8-seeded. 



A very distinct species with ripe pods much like those of V. pilosa, but with 

 adpressed instead of spreading hairs. 



77. DOLICHOS Linn. 



SUBGEN. I. LABLAB. 



1. Doltchos Lablab Linn. 



It would be better to follow Roxburgh and Wight, who were thoroughly 

 acquainted with the two plants cultivated in India that are united under this name 



