MANUAL OF THE 
Qiom 
/m 
' 
BOTANY 
OF THE 
NORTHERN UNITED STATES, 
FROM NEW ENGLAND TO WISCONSIN AND SOUTH TO OHIO 
AND PENNSYLVANIA INCLUSIVE, 
(The MOSSES and LIVERWORTS by Wm. S. Sullivant,) 
ARRAN G ED 
ACCORDING TO THE NATURAL SYSTEM; 
WITH AN INTRODUCTION, CONTAINING A REDUCTION OF THE GENERA 
TO THE LINNASAN ARTIFICIAL CLASSES AND ORDERS, 
OUTLINES OF THE ELEMENTS OF BOTANY, 
A GLOSSARY, ETC. 
By ASA GRAY, M. D., 
FISHER PROFESSOR OF NATURAL HISTORY IN HARVARD UNIVERSITY. 
BOSTON & CAMBRIDGE : 
JAMES MUNROE AND COMPANY. 
LONDON: JOHN CHAPMAN. 
1848. 
Missouri 
® A *agN 
Botanical 
Libra hy 
