FIG. 6. RHIZOCTONIA. 



a. Rhizoctpnia cankers on stems of young bean plants, b. young growing hyphae 

 of Rhizoctonia, c. young barrel shaped cells which compose the sclerotia of Rhizoc- 

 tonia, d. older and empty barrel shaped cells of sclerotia (a. to d. after Peltier). 



