jv inflatl. 



A4B. Pods conspicuously stipitate. 



A4BC. Pods not jointed to the stipe nor stipe jointed at the ends 

 or in the middle, falling away with the stipe and cslyx. 

 Plants never smooth nor with leathery leaflets. 

 A43CD. Pods completely laterally flattened except in the mid- 

 dle, acuminate at both ends, deltoid to triangular at tip, 

 clavate, about 3-4 cm. long and fully 1 cm. wide, stips about 

 twice the calyx. Flowers many, racemose, ascending. Calyx 

 tube cylindric, 7 mm. long. Pedicels stout, about 2 mm. 

 long. Peduncles 1-2 dm. long, stout, floral rachis about as 

 long. Oxyphysi. 

 Pods very flat, long-halberd-shaped. 68 oxyphysiis. 



A4BC2D. Pods half-elliptical to half-oval, about one third -'s 

 wide as long, tapering into a filiform stipe about half as 

 long as pod, 1.5-2.5 cm. long, ascending, not greitly inflated, 

 smooth. This section is allied to the A- stenophyllus group. 

 Tropical plants. Trichopodes. 

 Pods 1.5 cm. long, very slightly flattened in the middle. 6g trichopodus 

 Pods 2.5 cm. long, much flattened. 70 capilli]ies. 



A4BC3D. Pods papery, abruptly contracted into a variable 

 stipe, the body 3-4 cm. long (rarely 2 cm. long in forms 

 of leucopsis) and at least half as wide as long (not over 

 one third as long in fastidius but pod then abruptly con- 

 tracted into a short stipe and 3-3.5 cm. long), not lateral- 

 ly flattened. Flowers while, rarely tinged with purple, 

 in spikes. Tropical plants. Leucophylli. 

 \4BC3DE. Pubescence silky, of straight O'- only wavy and 

 fine hairs, not woolly. Flowers rather thick and stubby. 

 Calyx hyaline, cleft deeper above. Pedunclas subterminal 

 and stout. 

 Stipules not connate. 71 leucophyllus. 



Stipules connate. 72 curtipes. 



A4BC3D2E. Pubescence woolly, of kinked and tangled hairs, 

 or when minute the hairs are spreading and leaf sur- 

 face appears uneven. 

 Pods very obtuse at both ends, half-oval, with stipe 



I cm. long. 73 leucopsis. 



A4B2C. Pods jointed to the stire and mos*:lv --'isarticulating at 

 the joint. Leaflets thick and leathery, broad. 

 A4B2CD. Pubescence dense and ho^rv with stiff, closely aopres- 

 sed. straight hairs- Leaflets imbricated. Stems very short. 

 Lutosi. 



Flowers white, in axillary heads. 74 lutosus. 



A4B2C2D. Pods mottled. Pubescence none except in forms of 

 A. megacarpus on the calyx and young parts. Leaves in- 

 clined to be glaucous. Leaflets not imbricated, often round, 

 small. Stipules not connate. Calyx white and hyaline. 

 Wings elongated. Keel short, about as high as long. Pods 

 with ventral suture raised externally. Plants very closely 

 allied. Oophori. 

 A4B2C2DE. Pods papery, greatly inflated, ^-6 cm. long, 2-3 

 cm. wide, abruptly rounded at base and on a Stipe hardly 

 as long as calyx. Stems caespitose and almost none except 

 in oophorus. 

 Stems very short and prostrate. Pods 4-6 cm. long. 75 megacarpus. 

 Stems 1-2 feet loug, erect. Pods about 3 cm, long. 76 oophorus. 

 A4B2C2D2E. Pods coriaceous and rigid, somewhat inflated, 



