PLATE 16 



Saprolegnia litoralis 



Fig. I. Oogonium with mature eggs. X 503- 



Fig. 2. Young oogonium. X 503- 



Fig. 3. Young oogonia with typical antheridia. X 503- 



Fig. 4. Oogonium with antheridial tubes after the antheridia have emptied. X 503- 



Fig. 5. Intercalary oogonium. X 278. 



Fig. 6. A short-stalked oogonium. X 278. 



Fig. 7. Apical oogonium with unemptied antheridia. X 503- 



