E 



Fig. 74. A-Z), Aspergillus quercinus, NRRL No. 394: A, Colonies on Czapek's 

 solution agar, 10 days, predominantly sclerotial but with localized areas of heavy 

 conidial production in central areas. B, Marginal area of the same colony showing 

 very abundant sclerotia, and scattered conidial heads in lower right-hand corner. 

 C, Conidial heads on hay infusion agar plate, X 18. D, Single head showing globose 

 character, crowded sterigmata, and roughened conidiophore. E, Aspergill 

 tiorum on Czapek's solution agar, 10 days. F, Portion of the same enlarge( 

 abundant large sclerotia and scattered comparatively small heads, X 6. 



277 



us sclero- 

 rged to show 



