



PLATE X. 
A.— Section of pyenidium on muskmelon, showing mycelium (Myc.), epidermis of 
host (E) and spores, ; 
B.— Section of a perithecium with immature asci. On muskmelon (cut slightly 
on the bias, walls are really a little thinner). 
C.— An ascus with spores, and the three types of spores. 
D.— Germinated and ungerminated pyenidiospores. 
E.— Photograph of section of muskmelon vine, showing isolation of fibrovascu- 
lar bundles, and some fungous-hyphal masses. 
