386 THE MICROSCOPIST. 



gial cells after fecundation by ciliated spermatozoids 

 formed in antberidial cells. 



1. (Edogonium. Filaments unbranched. 



* Spores globular. 



f Sporanges with valvular lid. 

 (E. rostellatum. Monoecious, 

 f f Sporanges witb lateral orifice. 

 Monoecious. 



(E. curvun. (E. tumidulum. 

 $ % Gynandrosporous. 



(E. Rothii. (E. depressum. (E. Braunii. (E. eckino- 

 spermum,. 



* * Spores oval. 



f Sporanges witb valvular lid. 



^ Gynandrosporous. 



(E. dliatum. 



f f Sporanges witb lateral orifice. 



^ Gynandrosporous. 



(E. apophysatum. 



$ :f Dioecious. 



(E. gemelliparum. 



2. Bulbochceta. Filaments brancbed and bearing bristle- 

 cells witb a bulbous base. 



7. SIPHONACE.E. Sea, fresb water, or on damp ground. 

 Membranous or borny hyaline substance, filled with green 

 (in Saprolegniese colorless) granular matter. Fronds con- 

 tinuous tubular filaments, free, or in spongy masses of 

 various shapes, crustaceous, globular, cylindric, or flat. 

 Zoospores single or numerous. Resting spores in spor- 

 angial cells after impregnation by contents of antheridial 

 cells of different form. 



1. Codium. Filaments green, branched, interwoven into 

 spongiform frond, producing biciliated zoospores in spor- 

 angial cells borne on the sides of the erect clavate branches. 

 Marine. 



