[Vol. 9, 19221 



392 ANNALS OF THE MISSOURI BOTANICAL GARDEN 



Explanation of Plate 



PLATE 24 



Fig. 1. Artificial infections on barley (3 leaves). 



Fig. 2. Artificial infections on oats (6 leaves). 



Fig. 3. Artificial infections on wheat (4 leaves). 



Fig. 4. Artificial infections on rye. 



