244 



Mycologia 



Explanation of Plate XXXII 



Fig. I. Diagrammatic drawing of a mistletoe leaf showing the distribu- 

 tion of the pycnidia. 



Fig. 2. Several spores of Macrophoma Phoradendri, two of which show 

 the short, broken remnant of the sporophore. X 416. 



Fig. 3, A section of the pycnidium showing the protruding ostiole, the 

 character of the pycnidium wall, and the origin of the spores. X 416. 



