Plate IV 

 „ '^P.}^: I'emcillimn implicatum Biourge, NRRL 2054, on Czapek's solution agar, 12 days. CENTER- 

 Fenicilhum ckeTmisinumBionTf,e, NRRL 2049, on malt agar, 10 days. BOTTOM: Penicillium vinaceum 

 Uilrnan and Abbott, NRRL /39, on Czapek's solution agar, 12days. (Color photographs by Haines, Northern 

 Regional Research Laboratory. Reproduced through co-operation of Chas. Pfizer & Co. "inc.) 



