PLATE 2 



(Figs. 3-16 taken from Mycologia 6: PI. 148. 1914) 

 Pythiopsis Humphreyana 

 Fig. I. A cluster of oogonia some with diclinous, others with androgynous antheridia. 



X 370. 



Fig. 2. Oogonia borne racemosely with androgynous antheridia. X 370. 



Fig. 3. Sporangia of the globular form. X 335. 



Fig. 4. Two sporangia with an oogonium and antheridium. X 335- 



Figs. 5-10. Sporangia of various forms. Nos. 3 and 4 X 185; others X 125. 



Fig. II. An oogonium with two eggs and two antheridia, one of which is diclinous. X 335. 



Fig. 12. A young oogonium with antheridium. X 335- 



Fig. 13. Two sporangia with oogonia in close proximity. X 185. 



Fig. 14. A sporangium surrounded by several oogonia. X 185. 



Fig. 15. An oogonium with a diclinous antheridium, showing plainly the antheridial tube. 



X 335- 

 Fig. 16. An abnormal oogonium with four eggs. X 335. 



