PLATE 3 
Portions of inoculated leaves showing flecks or areas of tissue injured or destroyed 
by the fungus but no permanent infection resulting. This condition represents 
grade o in file five gradations of susceptibility to infection by Puccinia glumarum 
tritici . 
* A.—Portions of mature leaves of Bromus carinatus showing distinct brown blotches. 
B.—Portions of mature leaves of Red Russian wheat showing large spots of killed 
tissue. 
