«». l£;guminosa£;. m. 



2. Stamens as many or twice as many as petals. 3. 

 Stamens indefinite, numerous. 5. 



3. Upper flowers hermaphrodite (yellow). Lower neuter (white 



or red). 55 DICHROSTACHYS. 



Flowers all alike. 4- 



4. Flowers sessile. 53 ENTADA. 

 Flowers stalked. 54 ELEPHANTORHIZA. 



5. Filaments free or inner united. 56 ACACIA. 

 Filaments united in a tube. 57 ALBIZZIA. 



6. Petals absent, or .if present the posterior one (the one next 



the placenta), inside in the bud (Caesalpinoidae). 7. 



Petals 5, the posterior outside in the bud. 



(Papilionatae) 10. 



7. Leaves simple, 2 lobed. 51 BAUHINIA. 

 Leaves pinnate or bipinnate. 8. 



8. Leaves bipinnate. 49 HOFFMANSEGGIA. 

 Leaves pinnate. 9. 



9. Stamens 10. Anthers splitting. 52 SCHOTIA. 

 Stamens less than 10 perfect. Anthers opening by pores. 



50 CASSIA. 



10. Filaments free or nearly so. (Podalyrieae and Sophoreae). 11. 



Filaments united or all united except one. I4. 



11. Leaves simple or unifoliolate. I2. 

 Leaves pinnate or trifoliolate. 13. 



12. Flowers pink or purple. Calyx subequally 4-3 cleft. 



1 PODALYRIA. 



Flowers yellow or white. Calyx deeply slit in one or two 



places. 46 BAPHIA. 



13. Fruit flat, compressed, membranous. 47 CALPURNIA. 

 Fruit terete, moniliform, constricted between the seeds. 



48 SOPHORA. 



14. Connective of stamens produced into a small point, gland or 



tuft of hairs. Keel with a spur or prominence on each 

 side near the base. One stamen free. Hairs fixed by a 

 medial point (strigose). Flowers red or purple, rarely 

 white. 15 INDIGOFERA. 



Plants differing from Indigofera. 15. 



15. Ovary sessile, 1 ovuled, not ripening underground. 1 stamen 



free. Leaves never with stipels, usually with resinous 

 glandular dots. Stipules free or adnate to petiole. 

 Flowers blue, purple or white. 14 PSORALEA. 



Ovary 2 or more ovuled or otherwise differing from Psoralea. 



16. 



16. Filaments all or the alternate ones broadened at the apex. 17. 

 Filaments not broadened at the apex, 19. 



