Bui. 12, Bureau of Plant Industry, U. S. Dept. of Agriculture. 



Plate II. 



Fig. 1. Fruiting Body of Polyporus fraxinophilus. 



Fig. 2. — Two Young Sporophores on Living Ash. Fig. 3. — An Old Sporophore on Living Ash. 



Fruiting Bodies of Polyforus fraxinophilus on White Ash. 



