. AO [Vol. 9, 1922] 



4UJ ANNALS OF THE MISSOURI BOTANICAL GARDEN 



Explanation of Plate 



PLATE 29 



Fig. 1. Dense clouding in open arm in 1 per cent mannite-nutrient broth with 

 no growth above the arrow point, and no gas. 



Fig. 2. Wheat leaves inoculated at infected points with a pure culture of the 

 foxtail organism, by means of a sterilized platinum loop. 



