Plate 36 



Figs. 1-3. Oedogonium Pringsheimii Cramer: 1, x 625; 2 and 3, 

 x312 



Figs. 4, 5. Oedogonium pratense Transeau, x 590 



Figs. 6, 7. Oedogonium porrectum Nordstedt & Hirn, x 590 



Figs. 8, 9. Oedogonium pisanum Wittrock, x 600 



Fig. 10. Oedogonium nanum Wittrock, x 350 



Figs. 11-14. Oedogonium microgonium Fresco tt, x 675 



Figs. 15, 16. Oedogonium abbreviatum ( Hirn ) Tiffany, x 590 



Figs. 17-19. Oedogonium Smithii Prescott: 17 and 18, x 500; 19, x 

 650 



Figs. 20, 21 Oedogonium epiphyticum Transeau & Tiffany, x 500 



[732] 



