[HARRISON & lîARLowl NODULE ORGANISM OF THE LEGUMINOSAE 227 



38. Vicia v'llosa, plant 2. View showing the growth of roots. Not inocuhited 

 and no nodules formed. The roots did not grow sinoothly like tho.se of 

 the inoculated plants, but became very nodose. As the growth of the 

 stem and leaf gradually declined, the root formation became excessive. 

 Photo after 4 months" growth. 



