256 THROUGH GLADE AND MEAD. 
The arrangement and the nomenclature of this Catalogue 
are those of Gray’s Manual of the Botany of the Northern 
Onited States,—Sixth edition, t890—the book most readily 
accessible to all persons interested in the study of our local 
flora. In the present state of botanical nomenclature, and for 
the purpose for which this Catalogue is intended, I have not 
thought it wise or necessary to adopt proposed changes not 
yet generally accepted. The student interested in such mat- 
ters can easily adapt himself to changing conditions. 
Introduced species, so far as I have been able to determine 
the fact of introduction, are indicated by a *. 
