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A MANUAL OF THE ASPERGILLI 



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Fig. 71. Conidial structures in the Aspergillus flarus-oryzae group. A, A. flavus, 

 NRRL No. 482: A 1; typical, large, radiate to globose head showing sterigmata in two 

 series; A 2 , small, loosely columnar head showing single series of sterigmata. B, A. 

 effusus, NRRL No. 506: B u large radiate head showing double series of sterigmata; 

 B 2 , smaller head showing sterigmata in a single series; B 3 , diminutive head borne 

 upon one of a chain of foot cells. In this group single and double sterigmata often 

 occur in the same head (not illustrated). 



