PLATE 73 
Conidia of the various species of Phytophthora illustrating differences in shape of 
conidia and appearance of the terminal papilla. X320. 
A. — P. erythroseptica. 
B. — P.fagi. 
C. — P . arecae. 
D. — P. phaseoli. 
E. — P. parasitica. 
F. — P. infestans. 
