Plate V 

 TOP: Penicillium asperum (Shear) n.comb, NRRL 2088, on steep agar, 10 days. CEXTER: Penicillium 

 janthinellum Biourge, NRRL 2016, on Czapek's solution agar, 10 days. BOTTOM: Penicillium nigricans 

 (Baimer) Thorn, NRRL 915, on Czapek's solution agar, 12 days. (Color photographs by Haines, Northern 

 Regional Research Laboratory. Reproduced through co-operation of Chas. Pfizer & Co., Inc.) 



