Gray's Manual of botany a handbook of the flowering plants and ferns of the central and northeastern United States and adjacent Canada. - Gray, Asa 1810-1888; Fernald, Merritt Lyndon 1873-; Rollins, Reed C. (Reed Clark) 1911- (Portland, OR Dioscorides Press, 1988)
First edition published in 1848 under title: A manual of the botany of the northern United States
Includes indexes
Keywords: Botany -- United States; Botany -- Canada