PLATE 6. 



Papulospora parasitica. 



Figures 1-14. Show various stages in the development of the bulbil. 

 Figures 4, 5, & 9, 10. Show the protuberance from the lateral surface of the 



large central cell. 

 Figures 15, 16. Germinating bulbils. 

 Figure 17. Conidia-like bodies connected with the bulbil. 

 Figures 35b, 36. Swollen intercalary cells. 



ACROSPEIRA MIRABILIS. 



Figures 18-23. Stages in the development of the bulbil. 

 Figure 20. The end-cell has enlarged to form the central cell. 

 Figure 21. The second cell has enlarged to form the central cell. 

 Figure 22. Several empty cortical cells are shown. 



Reproductive Bodies Resembling Bulbils. 



Figure 24-34. Irregular forms of a doubtful bulbil (No. 170). 

 Figure 35. Spore of Stephanoma strigosum Wallr. 



