EXPLANATION OF PLATE 2. 



DiAPORTHE MARGINALIS FecJc. 



Pig. 1. Part of a branch bearing the fungus. 



Fig. 2. A pustule magnified. 



Fig. 3. Vertical section of a magnified pustule, showing three perithecia. 



Fig. 4. Two asci containing spores x 400. 



Fig. 5. Four spores x 400. 



DiAPORTHE Neilli^ Peck. 

 Fig. 6. Part of a branch bearing the fungus. 



Fig. 7. A perithecium magnified, its rostrum piercing the epidermis. 

 Fig. 8. Two asci containing spores x 400. 

 Fig. 9. Four spores x 400. 



Leptosph^ria Kalmi^ Peck. 

 Fig. 10. Part of a branch bearing the fungus. 

 Fig. 11. a piece of the bark with two perithecia magnified. 

 Fig. 12. A perithecium more highly magnified. 

 Fig. 13. A paraphysis and anasciis containing spores x 400. 

 Fig. 14. Four spores x 400. 



L^STADiA JEscvhiPeck. 

 Fig. 15. Part of a petiole bearing the fungus. 

 Fig. 16. A perithecium magnified. 

 Fig. 17. Two asci containing spores x 400. 

 Fig. 18. Four spores x 400. 



MoNiLiA Peckiana S. & V. 

 Fio. 19. A leaf partly discolored and its petiole frosted by the fungus. 

 Fig. 20. Two chains of spores x 400. 

 Fig. 21. A single spore x 400. 



M. Peckiana var. angustior S. 

 Fig. 22. Part of a raceme with four of its young fruits frosted by the fungus. 

 Fig. 23. Two chains of spores x 400. 

 Fig. 24. Two spores x 400, 



