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A MANUAL OF THE PENICILLIA 



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Fig ■' BretVld's figures of ''Penm7izMm s^ZmiCMm'' reassembled (in part). A 

 Habit sketch showing origin of conidial structure^, X 75. B Detailed drawings of 

 penicilli, X 400. C, Initial stages in perithecium formation, X 400. ^, Young peri- 

 thecium with fertile ascogenous hyphae beginning to appear X 175. ^'jfaiure 

 perithecium containing asci and ripe ascospores at center X 175. t ueveiop ng 

 Sci showing their characteristic origin in chains, X m (?, Mature and germinating 

 ^cospores, X 500. H, Germinated ascospores, X 500. (After Brefeld, 1874.) 



