Minnesota Trees and Shrubs 



An Illustrated Manual of the Native and 

 Cultivated Woody Plants of the State 



FREDERIC E. CLEMENTS 



HEAD OF THE DEPARTMENT OF BOTANY AND STATE BOTANIST 



C. OTTO ROSENDAHL 



PROFESSOR OF BOTANY 



FREDERIC K. BUTTERS 



ASSISTANT PROFESSOR OF BOTANY 



Report of the Botanical Survey 

 IX 



THE UNIVERSITY OF MINNESOTA 

 MINNEAPOLIS, MINNESOTA 



1912 



