ASYMMETRICA-DIVARICATA 



327 



Fig. 88. Penicillium nigricans series. A and B, Colonies of P. nigricans (Bain.) 

 Thorn, NRRL 915, on Czapek and malt agars at two weeks. C, Marginal colony area 

 of same strain showing divaricate penicilli, X 70. D, Detail of single penicillus, 

 X 1000. E and F, P. albidum Sopp, NRRL 2043, on Czapek and malt agars at two 

 weeks. 



