GRAY'S NEW MANUAL OF BOTANY: 



(SEVENTH EDITION — II-Tir^^.TH A TED) 



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 



ASA 6BAY PKOFESSOK OF SYSTEMATIC BOTANT\ IN HARVARD UNIVBRSITy 



AND 



MERRITT LYNDON FERNALD 



ASSISTANT FROFK3SOB OF BOTANY IN HARVARD UNIVEBSITY 



NEW YORK •:• CINCINNATI •:• CHICAGO 



AMERICAN BOOK COMPANY 



