ELEMENTARY FLORA 

 OF THE NORTHWEST 



BY 



THEODORE C. FRYE, PH.D. 



PROFESSOR OF BOTANY IN THE UNIVERSITY OF WASHINGTON 

 AND 



GEORGE B. RIGG, A.M. 



ASSISTANT PROFESSOR OF BOTANY IN THE UNIVERSITY 

 OF WASHINGTON 



AMERICAN BOOK COMPANY 



NEW YORK CINCINNATI CHICAGO 



