GRAY'S BOTANICAL TEXT-BOOK. 



(SIXTH EDITION.) 



VOL. I. 



STRUCTURAL BOTANY 



OR 



ORGANOGRAPHY ON THE BASIS OF 



MORPHOLOGY. 



TO WHICH IS ADDED THE PRINCIPLES OP 



TAXONOMY AND PHYTOGRAPHY, 



*]>L- 



& logsatg of Botanical 



BY 



ASA, GRAY, LL.D., ETC., 



FISHER PROFESSOR OF NATURAL HISTORY (BOTANY) IN 

 HARVARD UNIVERSITY- 



NEW YORK : CINCINNATI . : . CHICAGO 



AMERICAN BOOK COMPANY 



FROM THE PRESS OF 

 IVISON, Bl.AEKMAN & COMPANY 



