Inflati. 93 



racemose, 7-10 mm. long. Calyx tube about 2 mm. long, 

 obliquely attached (sometimes but obscurely so, with teeth 

 subulate and about as lonn as the tube (short in A. Meta- 

 nus). Peduncles about as long as leaves, the floral rachis 

 twice as long. Leaflets about 2-3 cm. long, elliptical or 

 narrower, mostly obtuse. Stipules adnat-^, reflexed. Stems 

 striate, 1-2 ft, long, rather flexuous. Internodes 3-0 cm. long. 

 Plants very oubescent except in A. metanus. Tropical life 

 zone. 

 AB3CDE. Pubescence spreading. Leaflets moderately petio- 

 lulate. 

 Pods racemose. Flowers nearly white. Plants shaggy 



with partly spreading silky hairs. 39 Julianus. 



Pods spicate. Flowers dark-purple. Plants hoary 



above with densely woolly hairs. 40 proriferus. 



AB3CD2E. Pods nearly glabrous, ventral suture humped in 

 the middle and about onohalf as cor.. ex theri -is the 

 dorsal. Upper leaves sessile or nearly so. LeaMets about 

 9 pairs, 23 cm. long, distant, acutish, long-petiolulate, nar- 

 rowly to linear-elliptic, flat. Pubescence closely ap- 

 pressed. Tall plants and probably shrubby. 

 Pods much flattened except at very base, 10 mm. long. 41 metanus. 

 Pods not flattened except at very tip. 2 cm. long. 42 Vaseyi. 



AB3C2D. Pods 4-10 mm. lonn, reflexed in short and close ra- 

 cemes, very greatly inflated, globose-ovate, not at all oblique 

 not compressed, not sulcate noticeably, not at all narrowed 

 at base, the minute and flat tip scarcely visible. Stems as- 

 cending, annuals or winter annuals. 

 Pods jointed to a minute stipe, 6-8 mm. long. 43 Thurberi 



AB3C3D. Pods about 5 mm. high and 12 mm. long, half-oval, 

 inflated very little and only in the middle, much laterally 

 flattened till nearly flat, erect and appressed. Apparently 

 perennials of the Lower Temperate life zone. 

 Pods nearly flat 44 Palmeri. 



AB4C. Slender or tall plants with minutely woolly pubescence, 

 stubby cream-colored flowers in dense spikes which do not 

 elongate with age and on conspicuous peduncles which elon- 

 gate with age. Leaves sessile, with many pairs of nearly 

 contiguous leaflets, which are cuneate below. Pods taper- 

 pointed. Tropical plants. 

 Pods rigid, small, little inflated, nearly smooth. Tall perennials. 



45 pychnostachyus. 

 Pods papery, rather large, much inflated, hairy. Annuals. 46 Ilornii. 

 A2B. Pods small, rarely 2 cm. long sometimes 3 cm. long in pictus 

 and subcinereus very much inflated (somewhat so in scalaris), 

 with cross section about round (deltoid-ovate in scalaris), tip 

 but little flattened (decidedly so in insularis), reflexed, almost 

 traslucent and very thin, firm in subcinereus and scalaris, on 

 a minute stipe shorter than calyx and mostly jointed to it. 

 Mostly annuals, weak or low plants, erect. 

 A2BC. Annuals or winter annuals with very thin small racemose 

 flowers, and low and spreading habit. Pods seemingly sessile 



