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PHYCOMYCETEAE 



Fig. 50. Mucorales, Family Mucoraceae. Mucor mucedo (L.) Fres. (A) Mature 

 sporangium just before escape of spores. (B) Escape of spores upon dissolution of 

 sporangium wall. (C) Columella after escape of spores. (D) Sexual reproduction in 

 early stage, with thin-walled gametangia in contact. (E) Mature zygospore. (F) 

 Germinating zygospore forming sporangiophore. (After Brefeld: Botanische Unter- 

 suchungen uber Schimmelpilze, Heft 1, pp. 1-64, Leipzig, Arthur Felix.) 



