Plate 93 



Figs. 1, 2. Cystodinium Steinii Klebs, x 500 



Fig. 3. Tetradinium javanicum Klebs, x 500 



Figs. 4-7. Raciborskia bicornis Woloszynska, x 600 



Figs. 8-10. Chlorochromonas minuta Lewis, x 1500 (redrawn from 

 Smith) 



Figs. 11-13. Stipitococcus apiculatus Prescott: 11 and 12, x 600; 13, 

 x2000 



Figs. 14, 15. Stipitococcus capense Prescott, x 590 



Figs. 16-19. Stipitococcus crassistipatus Prescott, x 1000 



Figs. 20-22. Stipitococcus urceolatus West & West, x 2000 



Figs. 23-25. Harpochijtrium Hyalothecae Lagerheim, x 590 



Figs. 26, 27. Chlorobotrys regularis ( W. West) Bohlin, x 590 



Figs. 28, 29. Centritractus dubius Printz, x 1000 



Fig. 30. Mischococcus confervicola Naegeli, x 590 



Fig. 31. Characiopsis lageniformis Pascher, x 750 



Fig. 32. Characiopsis longipes ( Rab. ) Borzi, x 1000 



Figs. 33, 34. Characiopsis pyriformis ( A. Braun ) Borzi, x 590 



Figs. 35, 36. Gloeobotrys limneticus (G. M. Smith) Pascher, x 590 



[846] 



