738 



AQUATIC PHYCOMYCETES 



Fig. 54. Monoblepharis and Gonapodya 



A. Monoblepharis insignis Thaxter, tip of hypha bearing epigynous anther- 

 idia and beaked oogonia, within which are endogenous oospores (type 

 material). B. Gonapodya prolifera (Cornu) Fischer, showing two lateral female 

 gametangia and a central discharging male gametangium; all internally 

 proliferating. C. Gonapodya polymorpha Thaxter, part of plant showing a 

 discharging sporangium and proliferated ones. D. Zoospore of Gonapodya 

 prolifera (Cornu) Fischer. E. Monoblepharis fasciculata Thaxter, tip of hypha 

 showing arrangement of sex organs, and endogenous oospores (type material). 

 F. Gonapodya prolifera (Cornu) Fischer, part of plant, showing hyphal 

 segments and proliferated zoosporangia. 



{A, C-F, Sparrow, 1933b; B, Johns and Benjamin, 1954, redrawn from 

 photomicrograph) 



