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136 



CONTRIBtJTIONS FEOM TITE NATTOFAL HERBAKTUM. 



Leaves simply pinnate, occasionally 2-foliolate; 

 calyx-lobes free to tlie disk, or perianth reduced 

 to scale or obsolete. (AiunERSTiEAE.) 

 Leaflets 1-jugate. 

 Leaflets many-jugate. 



Leaves simple, or 2-foliolate with more or less con- 

 nate leaflets. (Bauiitnieae.) 



Leavcssimply pinnate; sepals 5, distinct or calyx 

 lubes free to the disk; petals 5 or fewer or none; 

 stamens 2 to 10, anthers basiflxed or dorsifixed. 

 (Cassteae.) 



Loaves simple (rarely digitate); sepals 4 or 5, 

 ncnirly eqnal, iml^ricate, more or h^ss corolla- 

 ceous, the outer one somewhat larger than tlie 

 others; petals 4 or 5; stamens 3 or 4, the anthers 

 basinxed, opening with oblique iutrorse pores. 



(KuAilElUEAE.) 



Leaves bipinnate; calyx divided to the disk; 

 petals usually 5, snbequal or but slightly un- 



16. Ihjmcnaea (p. 152). 



17. Tnmarimfus (p. 152). 



18. Banhima (p. 153). 



19. Cassia (p. 155). 



■ 



20. Krameria (p. 1G3). 



21. Parh'nsoma (p. 1G3). 



23. Poinctaiia (p. 1G5). 



22. JlaeuKiforylnm (p. 164) 



24. Cae^salpinia (p. 165). 



Papilioxatae. 



equal; stamens 10. (Eucaesalptnteae.) 



Common petiole very short, spine-pointed; 

 rachis of the pinnae very long, flat, phyl- 



lodinoous. 



Comnioi:^potiole plainly developed, not phyl- 



lodineous. 



Calyx segments valvate in estivation. 



Flowers showy. 

 Calyx segments strongly imbricate in 



estivati(^n. 



Legume dehiscing lengthwise in the 



middle of llio vah^es. 



Legume indehiscent or dehiscing 



lengthwise at the sutures. 



Flow(^rs zygomorphic, papilionaceous; posterior petal 



(standard) outside in the bud. 



Stamens 10, all free. (SornoREAE.) 



Pods winged; leaves A\-ith pellucid glandular 



lines and dots. 



Pods not winged. 



A lai'ge tree; pods continuous. 

 A shrub; pods constricted betw(-*on the 

 seeds- 

 Stamens 10, monadelphous; pod 2-valved, not ar- 

 ticulate; erect herbs or shrubs, with simple or 

 digilatelytrifoliolate leaves. (Gexistkae.) 

 Tube of the stamens slit along thc^ top; styh^ 



abruptly bent near the base. 

 Stamens 10, monadelphous or dia<U4phoTis; pod 

 2-valved, not articulated; erect, rarely climb- 

 ing lierbs, shrubs, or trees with imparipinnate 



leaves. (Galeg ea e . ) 



Anthers with glandular, apiculate or penicil- 

 late-pilose connective; plants with malpi- 

 ghiaceous hairs, i. e., appressed hairs at- 

 tached by the middle. (Indigofeuinae.) 2D. Indiyofera {^. 172^. 



25. Aftjr<)ii]>ermmn (p. IGS). 



26. Onnosia (p. IGS) 



27. Sophora (p. 1G9) 



28. Crotahiria (p. 170). 



