UNITED STATES DEPARTMENT OF AGRICULTURE 
BULLETIN No. 380 
Contribution from the Bureau of Plant Industry 
WM. A. TAYLOR, Chief 
"- Washington, D. C. BROFESSIONAL PAPER January 15, 1917 
ENDOTHIA PARASITICA AND 
RELATED SPECIES 
By 
C. L. SHEAR, Pathologist, and NEIL E. STEVENS, Pathol- 
ogist, Fruit-Disease Investigations, and RUBY J. TILLER, 
Scientific Assistant, Office of Investigations 
in Forest Pathology 
CONTENTS 
Page 
Taxonomy Physiology—Continued 
Introduction Discovery of Endothia parasitica In 
The Genus Endothia China .. 
The Species of Endothia Discovery of Endothia parasitica in 
Morphology and Development .. - - Japan 
Present Distribution of Endothia 
parasitica in America 
Spore Measurements Host Relations of the Species of En- 
Physiology 
Cultural Studies 
Distribution of the Species of En- 
WASHINGTON * 
GOVERNMENT PRINTING OFFICE 
1917 
