School and College Edition. 



MANUAL 



BOTANY 



NORTHERN UNITED STATES, 



INCLUDING 



VIRGINIA, KENTUCKY, AND ALL EAST OF THE MISSISSIPPI; 



ARRANGED ACCORDING TO THE NATURAL SYSTEM. 



HMtfon, 



WITH 



GARDEN BOTANY, &c. 

 BY ASA GRAY, 



FISHER PROFESSOR OF NATDRAL BISTORT IN HARVARD UNIVERSITY. 



WITH SIX PLATES. 

 ILLUSTRATING THE GENERA OF FERNS, ETC. 



Ca!!*brn!a CcSIcso cf Pharmacy 



NEW YORK: 

 IVISON, PHINNEY, & CO., 48 & 50 WALKER STREET. 



CHICAGO: 

 S. C. GRIGGS & CO., 39 & 41 LAKE STREET. 



1862. 



