Flora of the prairies and plains of central North America,
Rydberg, Per Axel, 1860-1931.
Flora of the prairies and plains of central North America, by Per Axel Rydberg ... - New York, The New York Botanical Garden, 1932. - vii, 969 p. illus. 24 cm.
A manual of Pteridophyta and Spermatophyta. Preface signed by the editor, Marshall A. Howe.
32017564
Botany--North America.
Pteridophyta.
Phanerogams.
QK110 / .R8
581.97
Flora of the prairies and plains of central North America, by Per Axel Rydberg ... - New York, The New York Botanical Garden, 1932. - vii, 969 p. illus. 24 cm.
A manual of Pteridophyta and Spermatophyta. Preface signed by the editor, Marshall A. Howe.
32017564
Botany--North America.
Pteridophyta.
Phanerogams.
QK110 / .R8
581.97