THAYER, EMMA HOMAN. Wild Flowers of Colorado. New York: 1885. Large 4to, 313 x 230mm., original cloth, lightly soiled, spine chipped at head and foot, small split to inner margin of title and frontispiece. FIRST EDITION. 24 chromolithographed plates. Early inscription, dated 1885; Horticultural Society of New York, bookplate; Robert de Belder -- MEEHAN, T. The Native Flowers and Ferns of the United States. Boston: 1878-1879. 2 vols., 4to, 263 x 184mm., original cloth, spines torn and faded, occasional light spotting to plates. FIRST EDITION. 96 chromolithographed plates. Nissen BBI 1331 -- TORREY, J. A Flora of the State of New York. Albany: 1843. 2 vols., large 4to, 283 x 220mm., later cloth, some spotting to plates. FIRST EDITION. Engraved additional titles, 162 hand-colored lithographed plates. Nissen BBI 1973. KKM/HSNY, bookplate. (5)