PLATE 12. 



Papulospora sporotrichoides. 



Figures 1-9. Stages in the development of the bulhiL 



Figure 8. A mature bulbil. 



Figure 9. A side view of an immature bulbil. 



Figures 10, 11. Abortive forms. 



Figures 12-16. IVIodifirations in the formation of the spiral. 



Figure 17. An irregular bulbil g(>nninating, magnified more than the others. 



Figure 18. Branch of the hyphae sliowing primordia of the bulbils. 



Figures 19-2,5. Modifications in the development of the bulbils which are 



hyaline. 

 Figures 26-28. Semi-diagrammatic representation of the mode of cell 



formation in the development of the hyaline bulbils. 

 Figure 29. A section of a mature buUiil. 



Figures 30, 31. Large intercalary and terminal cells found in the hyi:)line. 

 Figures 32-34. Germinating bulbils. 

 Figures 25-26. Conidiophores with conidia. 

 Figure 37. Conidiophore produced directly from the bulbil in a Van Tieg- 



hem cell culture. * 



Figure 38. Conidium. 



Figure 39. The form the conidia usually assume before germinating. 

 Figures 40, 41. Clerminating conidia. 



