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A MANUAL OF THE PENICILLIA 



fonidial structures arising mostly as branches from aerial hyphae, less 

 commonly directly from the substratum (fig. 86A) , generally small and con- 

 sisting of 2 or 3 or more clusters of sterimata borne irregularly and more 

 or less terminally on conidiophores of variable dimensions up to 500/i 



Fig. 86. A, Penicillium nalgiovensis Laxa, marginal colony area, X 85. B, Detail 

 of a single penicillus in the same strain, X 1000. C, P. jenseni Zaleski, marginal 

 colony area, X 85. D, Detail of penicilli in the same, X 1000. 



or more by 2.5 to 3.0m, ^vith walls smooth or delicately roughened; peni- 

 cilli strongly divaricate (fig. 86B), consisting variously of occasional 

 branches, metulae and sterigmata, with branchlets (metulae) varying 

 markedly in arrangement and in size but mostly 8 to 12/i by 2 to 3m; 

 sterigmata measuring 8 to 10m by 2.0m and lacking evident conidium- 



