Bui. 380, U. S. Dept. of Agriculture. 



Plate XVII. 



PHOTOMICROGRAPHS OF PYGNOSPORES ANiy ASGOSPORES OF 



ENDOTHIA. 



Figs. 1 to 6.— Pycnospores: 1, Endothiagyrosa; 2, E. sinqularis; 3, E. fluens; 



4, E. LONGIROSTRIS; 5, E. PARASITICA (AMERICAN); 6, E. PARASITICA (GhINESE). 



Figs. 7 to 1 5.— Ascospores: 7, E. gyrosa; 8, E. singularis; 9, Sphaeria radicalis, 



FROM SCHWEINITZ'S SPECIMEN IN FRIES'S HERBARIUM; 10, EnDOTHIA PSEUDORAD- 

 ICALIS; 11, E. FLUENS; 12, E. FLUENS MISSISSIPPIENSIS; 13, E. LONGIROSTRIS; 

 14, E. TROPICALIS; 15, E. PARASITICA. 



