Bui. 252, Bureau of Plant Industry, U. S. Dept. of Agriculture. 



Plate III. 



glomerella cingulata asci from three different hosts, showing the 

 Range of Variation in Each. 



Figs. 30 to 34 from grape; 35 to 39, apple; 40 to 44, fig. All X 450 diameters. 



