* 
BULLETIN No. 19.—REVISED. Agros. 66. 
U. 5. DEPARTMENT OF AGRICULTURE. 
DIVISION OF AGROSTOLOGY. 
[Grass and Forage Plant Investigations. 
THE STRUCTURE OF THE CARYOPSIS OF GRASSES WITH REFERENCE 
TO THEIR MORPHOLOGY AND CLASSIFICATION. 
BY 
P. BEVERIDGE KENNEDY, PH. D., 
EXPERT AND AGENT IN CHARGE OF EXPERIMENTAL WORK. 
PREPARED UNDER THE DIRECTION OF F. LAMSON-SCRIBNER, AGROSTOLOGIST. 
WASHINGTON: 
GOVERNMENT PRINTING OFFICE. 
1900. 
