THE FUNGI : ARCHlMYCiETES AND PHYCOMYCETES 221 



either case a thick golden-brown wall quickly develops around the zygote, 

 forming a very conspicuous structure. The oospore may either remain 



Fig. 211. — Monoblepharis sp. nor. Group of oogonia 

 with smooth endogenous oospores. 



attached to the oogonium for a considerable time or it may be shed soon 

 after fertilization (Fig. 212). It germinates, usually after a period of rest, to 

 produce a hypha from which a new mycelium will be formed. 



Fig. 212. — Monoblepharis polymorpha. Group of oogonia 

 with spiny exogenous oospores. 



