,328 FLORA OF MADRAS. [Smithia. 



Calyx rigid, with close parallel simple veins ; flowers yellow : 

 Stems not bristly ; calyx-lips equal, acute : 

 Lomentum joints papillose : 



Flowers in short racemes ; lower calyx -lip Avith a few scattered 

 bristles ; leaflets 3-10 pairs, each '2- '4 in. long, bristly only on 



margins and midrib beneath 1. sensitiva. 



Flowers in pairs or single from the leaf -axils ; lower calyx-lip 

 with a tuft of bristles near the apex ; leaflets 4-7 pairs, each 

 3-'6 in. long, very bristly on margins and midrib with smaller 



ones between 2. geminiflora. 



Lomentum joints smooth ; flowers in pairs in the axils of leaves 

 crowded at the ends of the branches; lower calyx-lip bristly 

 along the keel at the back ; leaflets 4-7 pairs, '2-4 in. long, very 



bristly all over on the back 3. conferta. 



Stems conspicuously bristly ; calyx- lips obtuse, the upper much the 

 longer, both very yellow-bristly ; flowers in terminal panicles of 

 racemes ; leaflets glabrous with few bristles, 4-12 pairs, 1-1'5 in. 



long ; lomentum joints reticulate 4. setulosa. 



Calyx membranous, with anastomosing veins : 

 Flowers yellow : 



Flowers in loose racemes with filiform peduncles and pedicels : 

 Leaflets usually 2 pairs ; calyx-lips equal, the upper truncate, 

 the lower 3-lobed ; lomentum joints reticulate and papillose, 



very small, under '1 in. in diam 5. bigemina. 



Leaflets 3 pairs ; calyx-lips equal in length, the upper broad 

 with 3 parallel nerves in the middle, the lower acute scarcely 

 lobed; lomentum joints reticulate with flat margins, '1 in. in 



diam. or more 6. gracilis. 



Flowers in close more or less corymbose racemes with short 



pedicels, lomenta with 4-7 reticulate joints ; leaflets 3-4 pairs: 



Calyx-lips bristly and ciliate with yellow hairs not on black 



bases, upper lip truncate, retuse, lower smaller, obscurely 



3-lobed; racemes short 7. racemosa. 



Calyx-lips with conspicuous bristles on black bulbous bases, 

 upper lip truncate, emarginate, lower smaller, acute, obscurely 



3-lobed ; racemes elongate, one-sided 8. hirsuta. 



Flowers in subcapitate heads on peduncles 1-1-5 in. long, in pairs 

 or threes in the upper leaf axils ; leaflets 4 pairs, up to 1 in. long 

 by '3 in. broad ; lomentum with 3-6 reticulate bordered joints ; 

 calyx-lips merely short-ciliate on the edges, upper lip broad, emar- 



ginate, lower 3-lobed 9. Venkobarowii. 



Flowers in terminal panicles of corymbose racemes one-sided in 



