WOOTON AND STANDLEY—FLORA OF NEW MEXICO. 337 
Leaves with an even number of leaflets, termi- 
nated by a tendril or a_ bristle-like 
appendage. 
Styles filiform, hairy all around and below 
theapex; stamen tube usually oblique 
at the summit.............--...... 25, 
Styles flattened, hairy on the inner side; 
stamen tube truncateornearly s0..... 26. 
Leaves odd-pinnate, rarely palmate, without 
tendrils. 
Pod a loment, breaking transversely into 
1-seeded indehiscent segments. 
Pods 1 or 2-seeded, more or less spiny 
or toothed.....--....-------.8. 22. 
Pods several seeded, not spiny or 
toothed. 
Leaves 3-foliolate..........-.----- 23, 
Leaves with numerous leaflets.... 24. 
Pod not a loment, 2-valved or indehiscent, 
sometimes 2-celled by intrusion of the 
sutures. 
Stems slender, twining; plants herba- 
ceous, annuals or perennials; 
leaves 3-foliolate. 
Keel of the corolla not coiled nor 
incurved. 
Flowers yellow ......-------- 27. 
Flowers purplish .........--.. 29. 
Keel of the corolla coiled or in- 
curved. 
Keel of the corolla spirally 
twisted; inflorescence 
racemose......-------- 30. 
Keel merely incurved; inflo- 
rescence various. 
Annual; calyx 5-toothed; 
inflorescence capi- 
Perennials; calyx 4- 
toothed ; flowers soli- 
axils......-.----.- 32, 
Stems not twining; herbs or shrubs; 
leaves 3 to many-foliolate. 
Foliage glandular-punctate (exceptin 
a few species of Parosela). 
Podscovered with hooked prickles. 21. 
Pods not prickly. 
Leaves palmately 3 or 5-foliolate 
or pinnately 3-foliate .-...-- 11. 
Leaves mostly pinnately 5 to 
many-foliolate. 
Stamens only 5........-.---- 16, 
52576°—-15——22 
Victa (p. 373). 
LATHYRUS (p. 375). 
ONOBRYCHIS (p. 371). 
MEIBOMIA (p. 371). 
HEpDYSARUM (p. 373). 
Do.icHoLus (p. 376). 
GALACTIA (p. 376). 
PHASEOLUS (p. 377). 
. STROPHOSTYLES (p. 378). 
CoLoGANIA (p. 378). 
GuycyRRuHIza (p. 371). 
PSoRALEA (p. 348). 
PETALOSTEMUM (p. 355). 
