(58) 



B. Gemiinely diadelplious, 



a. Style not pilose. 



1. Hosackia. — Petals unguiculate. Carina 

 rostrate. 



2. Trifolium. — Petals persistent, adnate to 



the stamineal tube. 



3. Psoralea. — Wings of the corolla adnate 

 to the carina. Ovary sessile, l-ovulate. 

 Legume indehi scent, included in the 

 calyx. 



4. Glj'cyrrhiza. — Petals not adnate to the 

 stamineal tube. Carina 2-petalous. 



5. Astragalus. — Petals not adnate to the 

 stamineal tube. Carina blunt. Legume 

 imperfectly 2-celled. 



6. Melilotus. — Petals not adnate to the stam- 

 ineal tube. Ovary straight. Legume 

 globose. 



7. Medicago. — Petals not adnate to the 

 stamineal tube. Ovary crescent-shaped. 

 Legume spiral. 



b. Style pilose. 



1. Lathyrus. — Style pilose only on the ven- 



tral side which is flattened. 



2. Vicia. — Style pilose on the dorsal side, 

 or all around the apex. Style not spi- 

 ral. 



