Bui. 226, Bureau of Plant Industry, U. S. Dept. of Agriculture. 



Plate XV. 



Fig. 1.— Leaf of the Japanese Privet Affected with Leaf-Spot Due to 

 Cercospora Ligustri. 



Fig. 2.— Small Branch of Mesquite, Showing Three Galls of Possible 

 Bacterial Origin. 



Fig. 3.— A Single Large Gall on a Small Branch of Mesquite. 



