GRAY'S NEW MANUAL OF BOTANY 



(SEVENTH EDITION — ILLUSTRATED) 



A HANDBOOK OF THE 



FLOWERING PLANTS AND FERNS 



OF THE CENTRAL AND NORTHEASTERN UNITED STATES 

 AND ADJACENT CANADA 



REARRANGED AND EXTENSIVELY REVISED BY 



BENJAMIN LINCOLN ROBINSON 



ABA. GRAY PROFESSOK OF SYSTEMATIC BOTANY IN UARVARD UNIVERSITY 



AXD 



MERRITT LYNDON FERNALD 



ASSISTANT PROFESSOR OF BOTANY IN HARVARD UNIVERSITY 



NEW YORK •:• CINCINNATI •:. CHICAGO 



AMERICAN BOOK COMPANY 



