Memoir S5 



Plate VI 



c 



13 



DIFFERENT HABITS OF FORMATION OF SCLEROTIA EXHIBITED BY THE CABBAGE STRAIN AND 

 BY THREE POTATO STRAINS OF CORTICIUM VAGUM 



(Age of culture, 12 days) 



C, Cabbage strain, with a few minute sclerotia. P27, Potato strain, with large, compact masses of 

 sclerotia in center of petri dish. P70, Potato strain, with uneven, grayish brown sclerotia radiating from 

 center of petri dish. P13, Potato strain, with cinnamon brown sclerotia uniformly scattered over surface 

 of petri dish 



