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Fig. 70. Aspergillus oryzae. A and B, Strain XRRL Xo. 447 (Thorn No. 113): 

 A, Single colony on Czapek's solution agar, loose-textured, conidiophores long and 

 limited in number, 10 days; B, Details of single head, vesicle thin-walled, sterigmata 

 mostly in two series, X 480. C-F, Aspergillus oryzae XRRL Xo. 458: C, Single 

 colony on Czapek's solution agar, comparatively heavy sporing, 10 days; D, Conidial 

 heads of the same, X 18; E, Conidial heads further enlarged, X 270; F, Single head 

 showing vesicle, sterigmata in a single series, and roughened conidiophore, X 775. 



262 



