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A MANUAL OF THE PENICILLIA 



Fig. 92. Penicilliuvi citrinum Thom. A and B, NRRL 806 on Czapek and malt 

 agars at two weeks. C and D, NRRL 1842 on the same substrata, same age. £" and 

 F, NRRL 1841, on steep and malt agars. 



