PLATE 11 



Saprolegnia ferax 



Fig. I. Sporangia containing a cylindrical oogonium. X 447- 



Fig. 2. Proliferation through old sporangia. X 247. 



Fig. 3. Habit of fruiting. The stalks of the two upper oogonia are hidden. X 108. 



Fig. 4. Cylindrical oogonium, with some eggs of abnormal shape. X 447- 



Fig. 5. Sporangium with long papilla. X 167. 



Fig. 6. Gemmae. X 102. 



Fig. 7. Gemma with an oogonium attached. X 447. 



Fig. 8. Oogonium partly filled with ripe eggs, and showing an ingrowing tube from below. 



X 447- 

 Fig. 9. Spore in first swimming stage. X 720. 

 Fig. 10. Oogonium with antheridia. X 417. 



Fig. II. A cylindrical oogonium with a spherical protuberance. X 447- 

 Fig. 12. Sporangia renewed both as in Aclilyn and in Saprolegnia. X 167. 



