PLATE 8. 



Papulospora cineeea. 



Figures 1-10. Stages in the development of the bulbil. 



Figures 4, 6, & 9. Modifications of the regular mode of development. 



Figures 10, 11. Mature bulbils. 



Papulospora rubida. 



Figures 12-16. Stages in the development of the bulbil. 

 Figures 25a-27a, 21, 22. Other stages in the development of the bulbil. 

 Figures 17, 20. The spiral primordium that sometimes occurs. 

 Figure 25. Section of a mature bulbil showing five large central cells. 

 Figure 18. Surface view of a mature bulbil. 



Papulospora pannosa. 



Figures 28-30. The development of a bulbil from a lateral branch. 

 Figure 31. A collapsed hypha showing rigid septa. 



