62 



2AB. Dorsal suture neither raised nor intruded. Ventral 

 suture produced somewhat along the middle. Pods 

 inflated and with papery walls (rarely leathery in A. 

 lentiginosus) 4. Inflati. 



2A2B. Dorsal suture, either a raised line within or slightly 

 produced, the ventral seldom produced. 

 2A2BC. Walls almost papery, pods slightly inflated. 



Pods sessile. 5. Sparsiflori. 



Pods stipitate and mostly pendent. 6. Alpini 



2A2B2C. Walls rigid or a little fleshy. Pods mostly 



stipitate. 



Pods ascending to erect, abruptly if at all pointed below. 



10. Reventi-Arrecti. 

 Pods pendent, tapering below, explanate with age. 



26. Lonchocarpi. 

 2A2E3C. Pods sessile, rarely inflated, oblong to broad- 

 ly-ovate, oblique. Dorsal suture a raised line only 

 within. Walls variably fleshy, mostly hairy or wool- 

 ly without. Flowers purple, rarely white, 

 mostly large. Plants caespitose, acaulescent, or 

 pulpy with short stems, never erect. 18. Argophylli. 

 2A2B4C. Dorsal suture a raised ridge within. Pods 

 mostly stipitate, broad to round, inflated, with rigid 

 walls not hairy when mature, variably fleshy. Flow- 

 ers large. Stems erect mostly. Leaflets broad. 



9. Preussii. 

 3A. Pods wholly or nearly 2-celled by intrusion of sutures. 

 SAB. Pods with dorsal suture intruded to or near the mid- 

 dle, the ventral not intruded to speak of. 

 3ABC. Pods semingly wrong side up by the ventral 

 suture being the more arched. 

 Pods rigid, rarely fleshy or papery, not inflated, 

 mostly pendent, slightly if at all stipitate. 

 oblong or narrower, as broad as high. 

 Flower scattered and small. 15. Atrati. 



Flowers large and densely spicate. Pods nearly 

 linear. 

 Leaflets broad and flat, many 



25. Galegiformes. 

 Leaflets very narrow and few. 26. Lonchocarpi. 

 Pods papery, inclin*^d to be a little inflated, stipitate, 

 mostly pendent. (A. scopulorum and racemous.) 



16. Strigulosi. 



Pods a little fleshy and inclined to be a little inflated, 



ascending in dense spike on tall stems. Flowers 



white. 11. Uliginosi. 



