PLATE * 
A. —Puccinia graminis avenae (Form I): (i) Victory, very susceptible; (2) White 
Tartar, quite resistant; (3) Monarch Selection, practically immune. 
B. —Puccinia graminis avenae (Form II): (i) Victory, very susceptible; (2) White 
Tartar, quite resistant; (3) Monarch Selection, highly susceptible. 
