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Journal of Agricultural Research 



Vol. XX, No. 9 



Fig. 2. — I, culture 510: A, greenish black mycelium; B, white mycelium. II, culture 943: A, black 

 mycelium; B, white mycelium; C, mycelium mostly in medium, growth zoned, abundant spore pro- 

 duction. Ill, culture 495: A, black mycelium; B, gray mycelium; C, white mycelium. IV, culture 

 527: A, gray mycelium; B, greenish black mycelium; C, white mycelium; D, black mycelium. V, 

 culture 940: A, greenish black mycelium; B, white mycelium, some greenish concentric circles; C, black 

 mycelium; D, white mycelium; E, white and black mixed. 



