EXPLANATION OF PLATE 2. 



DiAPORTHE MARGINALIS Peck. 



Part of a branch bearing the fungus. 



A pustule magnified. 



Vertical section of a magnified pustule, showing three perithecia. 



Two asci containing spores x 400. 



Four spores x 400. 



DiAPORTHE Neilli/E Peek. 



Part of a branch bearing the fungus. 



A perithecium magnified, its rostrum piercing the epidermis. 



Two asci containing spores x 400, 



Four spores x 400. 



* 



Leptosph^ria KALMii3E Peek. 



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 highlj- magnified. 



Fig. 13. A paraphysis and an ascus containing spores x 400. 



Fig. 14. Four spores x 400. 



L.^stadia JjlscuLi Peck. 



Part of a jjetiole bearing the fungus, 

 A perithecium magnified. 

 Two asci containing spores x 400. 

 Four spores x 400. 



Monilia Peckiana 8. & V. 

 Fig. 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, 



