PLATE XXXII 
Fig. i.—The three American species of sorghum smut on Blackhull kafir: (a) 
Sphacelotheca cruenia, (b) Sorosporium reilianum, (c) Sphacelolheca sorghi. Photo¬ 
graphed by author. 
Fig. 2.—Head smut, Sorosporium reilianum (Kuhn) McAlp., on “sumac” sorgo, 
San Antonio, Tex., October, 1913. Photographed by Mr. Karl F. Kellerman. 
51131 0 —14-4 
