A manual of the botany of the northern United States [microform] : from New England to Wisconsin and south to Ohio and Pennsylvania inclusive /
Gray, Asa,1810-1888.
Sullivant, William Starling,1803-1873.
Boston : J. Munroe,
1848
Includes index.
Sabin 28366
Microfiche.
Botany
Mosses
Liverworts