THE FUNGI: ARCHIMYCETES AND PHYCOMYCETES 213 



Antheridium 



Oogonium 



Oosphere 



Antheridial 

 Hypha 



Oogonial 

 Hypha 



Oogonium 



Oosphere 

 Antheridium 



B 



Fig 204.-Comparison of antheridial origins. A, Saproleguia dioua. Diclinous type 

 'with oogonia arising from stout hyphae, antheridia from thin ones. B Saprolegma 

 monoica, androgynous tvpe with antheridia arising from the stalks of the oogonia. 



