Vol. II 
No. 3 
AMERICAN 
JOURNAL OF BOTANY 
OFFICIAL PUBLICATION OF THE 
BOTANICAL SOCIETY OF AMERICA 
mmm k 
CONTENTS 
Morphology as a factor in detennining relationships . . . J. M, Greenman 111 
The genetic relationship of parasites . Frank Dunn Kern 116 
The experimental study of genetic relationships ...... .H. H. Bartlett 132 
PUBLISHED 
IN COOPERATION WITH THE BOTANICAL SOCIETY OF AMERICA 
BY THE 
BROOKLYN BOTANIC GARDEN 
At 41 North Queen Street, Lancaster, Pa. 
Entered as aeoond-class matter February 21, 19x4, at the post office at Lancaster, Pennsylvania, 
under the act of March 3. 1879^ 
