Vol. IV. 
MARCH, 
1911 
ITg. 3 
AMERICAN 
JOURNAL OF BOTANY 
OFFICIAL PUBLICATION OF THE 
BOTANICAL SOCIETY OF AMERICA 
CONTENTS 
Matrocli^ic inheritance in mutation crosses of Oenothera-Reynoldsii. 
Carl D. La Rue AND H. H. Bartlett 119 
Duration of leaves in evergreens ... ......... . Vinnie A. Pease 145 
The relation between evaporation and plant succession in a given area. 
Frank C. Gates 161 . 
PUBLISHED 
IN COOPERATION WITH THE BOTANICAL SOCIETY OF AMERICA 
BY THE 
BROOKLYN BOTANIC GARDEN 
At 41 North Queen Street, Lancaster, Pa 
Entered as second-class matter February 21, 1914, at the post office at Lancaster, Pennsylvania, 
under the act of March 3, 1879. ' 
