School and College Edition. 



MANUAL 



BOTANY 



NORTHERN UNITED STATES, 



INCLUDING 



VIRGINIA, KENTUCKY, AND ALL EAST OF THE MISSISSIPPI; 

 ARRANGED ACCORDING TO THE NATURAL SYSTEM. 





Ifouttt) Hefafsefc IStJftfon, 



WITH 



GARDEN BOTANY, &c. 

 BY ASA GRAY, 



FISHER PROFESSOR OF NATURAL BISTORT IN HARVARD DNITERSITT 

 WITH FOURTEEN PLATES. 



ILLUSTRATING THE GRASSES, FERNS, BTO. 



NEW YORK: 

 IVISON, PHINNEY, BLAKEMAN & CO., 



CHICAGO : S. C. GRIGGS & CO. 



1 869. 



