4SO 



BOTANY OF CROP PLANTS 



Fig. 189. — Pods of 10 species of Medicago. Top row, M. arabica and M. 

 hispida denticulata; second row, M. hispida confims"*and M. hispida tere- 

 bellum; third row, M. muricata and M. hispida nigra; fourth row, M. ciliaris 

 and M. echinus; bottom row, M. scutellata and M. orbicularis. (After McKee 

 and Kicker, U. S. Dept. of Agr.) 



