1897.] D. Prain — Some additional Leguminosee. 461 



Mr. Bentham identified with Wall. Gat. 5916 the plant issued as D. paniculatq 

 Wight (Herb. 920) and separated two varieties " j3. parviflora" and "y? brevipes" 

 Mr. Baker has ascertained, however, that " y ? brevipes " is specifically distinct, and 

 as regards the other two he reverses Mr. Bentham's judgment. He says that Wall. 

 Cat. 5916 is not the same as Wight n. 920. which he makes a variety, while he gives 

 the Concan plant, (Bentham's var. f$. parvijlora) as the equivalent of the type speci- 

 men. The point is of considerable importance because the two are very distinct ; the 

 Concan plant has a silky keel, the D. paniculata of Wight has all the petals glabrous ; 

 the two must be recognised as different species. What makes it most difficult to 

 deal with the question in that Wight n. 920 is described by Mr. Baker as having 

 considerably smaller leaflets than Wall. Cat. 5916. Its leaflets are, however, in 

 reality much longer than those of the Concan plant referred to, or than those of the 

 apparently closely related D. eualata. There is at Calcutta a specimen named 

 " D. Heyneana var. brevipes " (Herb. Ind. Or. H. f. Sr T. n. 10) but it is exactly the 

 same as the D. Heyneana of Dalzell and Gibson's Bombay Flora of which there is 

 an authentic specimen at Calcutta — in any case it cannot be D. brevipes Baker 

 because its pedicels exceed the calyx and its pods are quite glabrous. Members of 

 the Society who live in Southern and Western India should endeavour to remove the 

 difficulties that are connected with the differentiation of the species of this group. 



16. Derris marginata Benth. 



Add to localities of F. B. I. : — Chittagong ; Helingomara and 

 Demagiri, Lister ! Pegu ; Brandis ! 



166. Derris affinis Benth. PI. Jungh. 252 ; leaflets 5, medium, 

 firmly papery, ovate-acute, racemes laxly panicled, with sparsely ad- 

 pressed-puberulous branches, corolla small. Derris uliginosa var. 

 Loureirii Benth. in Journ. Linn. Soc. iv. Suppl. 108, in part. Pongamia 

 uliginosa Wall. Cat. 5879 (E only) not of DO. 



Penang; Wallich! 

 A climber with pale-brown lenticular glabrous branches. Leaves 6 in. long, 

 leaflets 2*5 in. long, 1*25 in. wide, lateral nerves 10 pairs prominent spreading, run- 

 ning almost to margin of leaf -blade. Racemes 6-8 in. long, their branches 25 in., 

 spreading, nodes not produced. Pedicels filiform, '2 in. long, bibracteolate close under 

 the calyx. Calyx campanulate, *12 in. long, subglabrous. Corolla '35 in. long, stand- 

 ard orbicular ecallose. Ovary sparsely hairy ; ovules 4. 



This is evidently very near to D. marginata and I). amoena ; from the former it 

 differs in having shorter pedicels bracteolate at their tips and in having more numer- 

 ous prominent nerves to the leaves ; from the latter it differs in having thinner 

 pale leaves, and laxer panicles with spreading branches and more scattered flowers. 



16c. Derris floribunda Benth. Journ. Linn. Soc. iv. Stippl. 105 ; 

 leaflets 3-5, medium, coriaceous, elliptic-oblong, racemes laxly panicled, 

 with sparsely spreading puberulous pedicels, corolla small. Bracliy- 

 pterum floribundum Miq. Flor. Ind. Bat. i. 139. 



Perak ; Scortechini 2180 ! Distrib. Java. 



A stout rambling shrub with glabrous whitish branches. Leaves pale-green, 4-5 

 in. long, leaflets 2-25 in. long, 1-125 in. wide, with rounded base and obtusely acu- 

 minate apex, lateral nerves 4 pairs, faint below, invisible above. Racemes 1-15 feet 



