WOOTON AND STANDLEY FLORA OF NEW MEXICO. 



337 



Leases with an even number of leaflets, termi- 

 nated by a tendril or a bristle-like 

 appendage. 

 Styles fdiform, hairy all around and below 

 theapex; stamen tube usually oblique 



at the summit 25. 



Styles flattened, hairy on the inner side; 



stamen tube truncate or nearly so 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 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-ioliolate. 

 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 



Keel merely incurved; inflo- 

 rescence various. 

 Annual; calyx 5-toothed; 

 inflorescence capi- 

 tate 



Perennials; calyx 4- 

 toothed ; flowers soli- 

 tary or in 2 'sin the 



axils 



Stems not twining; herbs or shrubs; 

 leaves 3 to many-foliolate. 

 Foliage glandular-punctate (exceptin 

 a few species of Parosela). 

 Pods covered with hooked prickles. 

 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 



ViciA (p. 373). 

 Lathyrus (p. 375). 



Onobrychis (p. 371). 



Meibomia (p. 371). 

 Hedysarum (p. 373). 



DOLICHOLUS (p. 376). 

 Galactia (p. 376). 



30. Phaseolus (p. 377). 



31. Strophostyles (p. 378). 



32. COLOGANIA (p. 378). 



21. Glycyrrhiza (p. 371). 



PSORALEA (p. 348). 



Petalostemum (p. 355). 



