HANSON: NEW CHYTRIDS 33 



branching dichotomous. Zoospores hyaline, spherical, 2.9-4.5 /a, with two, 

 three, four (rarely one), refractive globules; flagellum 26-30 [x long. Zoospore 

 case always persistent on the zoosporangium, thickened, bulbous, never flat- 

 tended, amber to dark brown in color, rarely apical or lateral, but remaining like 

 a basal protuberance on the sporangium. Resting spores not observed. 



Saprophytic on grasses, bleached corn leaves, onion, and cellophane, 

 Sharon, Connecticut. 



The author wishes to express her gratitude to Professor John S. Karling 

 under whose direction this work is being carried on, and to Miss Elsie Walush 

 for the Latin diagnoses. 



Department of Botany, Columbia University 

 New York City 



