95 Inflati. 
group is probably nearest related to the lentiginosus group 
Flowers purple. Calyx teeth half as long as tube. Leaves 
and pods nearly smooth. 57 Crotalariz. 
Flowers light-colored. Calyx teeth as long as tube. 
Leaves densely white-woolly. Pods about smooth. 58 Miguelensis. 
Flowers purple-tipped. Whole plant silvery-silky. 59 Magdalene. 
ASBCD3E. Pods ovate, narrowed at base into a very thick 
pseudostipe, cartilaginous. Flowers white (cream-colored 
dry), about 1 cm. long, stubby and much arched, in loose 
racemes, Leaflets several pairs. 
Pods rigid, ascending 2 cm long. 60 oocarpus. 
A3BC2D. Pods jointed to a minute boss within the calyx and 
so minutely stipitate (stipe is about 2 mm. long in We- 
therilli), falling away from it readily, conspicuously ob- 
ligue, the ventral suture mostly straight. Flowers short, 
arched and rather stubby, narrow in A. Wetherilli hardly 
1 cm. long, few and racemose. Stems decumbent, open, 
airy and branched below. Leaflets rather many, linear to 
narrowly elliptical (oval only in Wetherilli). 
A3BC2DE. Pods a trifle obcompressed if at all flattened. Flow- 
ers white, (rarely purplish) Californian species. Tro- 
pical mostly. Macrodontes. 
Whole plant softly-shaggy. 61 macrodon. 
Plants smooth or only ashy. 62 Douglasii. 
A3BC2D2E. Pods a little laterally flattened, about half-ovate. 
Flowers few racemose, about 7 mm. long, ascending in 
bloom, purplish, rarely whitish. Peduncles with rachis 
rarely longer than leaves,1-2 dm. long. Upper leaf peti- 
oles short or almost none. Leaflets long-petiolulate, 2-4 
cm, long. Stems flexuous, from a thick or woody root 
about 2 ft. long, spreading in tufts. Plants of the Navajo 
Basin and adjacent Colorado river drainage. Allochroi. 
Stipe minute. 63 allochrous. 
Sitpe about as long as calyx. 64 Wetherilli. 
A3B2C. Pods balloon-shaped, larger^above (sometimes obscurely 
so), the cross section about round, little or somewhat oblique, 
mostly only apiculate at tip, conspicuously inflated and papery, 
tapering or contracted into a stipe at base (not tapering and 
sessile in jejunus) about as long as calyx. Stipules connate at 
least below. Leaflets linear (elliptical in Hookerianus) and 
mostly acute. Pubescent plants but never woolly. Perennials 
of the Lower and Middle, rarely Upper Temperate life zones. 
A3B2CD. Pods nearly globose, sessile, about 1 cm. long. Stems 
caespitose and very short. Flowers not over 7 mm. long 
Leaflets revolute, sharp. Jejuni. 
Plants densely matted and nearly acaulescent, smooth. 65 jejunus. 
A3B2C2D. Pods 2-5 cm. long, tapering at base into a distinct 
stipe as long as calyx but not jointed to it, sulcate ventrally 
Flowers a little over 1 cm. long, mostly rather capitate, 6-10, 
ascending. Banner large. Keel large, the base somewhat 
arched, tip acute Fruiting calyx mostly reflexed, the tube 
about 3 mm. long and: teeth never over half the tube. Up- 
per petioles short and leaf rachis long. Leaves rather ap- 
pressed, the middle ones the largest. Internodes 2-7 cm. 
long. Stems a half to 2 ft, long, tufted from rather woody 
root. Hookeriani. | 
Tall, erect, smooth, plants with phyllodia-like leaflets. 66 Cusickii. 
trate, with silvery and rather 
ei nts A a vp ae d = 67 Hookerianus- 
