PLATE 27 
Helminthosporium cynodontis 
A.—Portion of plant of Cynodon dactylon attacked by Helminthosporium cynodontis, 
showing withered condition of leaves bearing fructifications of fungus. X|<4 • Drawn 
from material collected at Wauchula, Fla., April 19, 1921. 
Ba-u.—Conidia from affected leaf of Cynodon dactylon, showing variation in size, 
shape, and septation. X500. 
Ca-i.—Conidia from leaf of Cynodon dactylon germinating in water, by production 
of two polar germ tubes. X 500. 
Da-g.—Conidiophores of H. cynodontis emerging singly or in pairs from stomata or 
between epidermal cells of Cynodon dactylon. X500. 
