PLATE 10 



Saprolegnia AN'ISOSPORA 



Fig. I. Habit of oogonia and antheridia. X i88. 



Figs. 2, 3, and 4. Formation of eggs and growth of antheridial tubes in the same oogonium. 



No. 4 was drawn 15 minutes later than No. 3. X 536- 

 Figs. 5 and 6. Oogonia attacked by a parasite that seems to be a blue-green alga. X 503 



and 810. 



