Orchids, stove and greenhouse plants : select nursery stock - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Julius Roehrs Company, 1913)

Orchids : summer list - 1954 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R.H. Gore, 1954)

Orchids : summer list - 1955 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R.H. Gore, 1955)

Orchids :the royal family of plants - Miner, Harriet Stewart. (Lee and Shepard, 1885)

Orchids: their culture and management - Watson, William, 1858 -1925 (L. U. Gill, 1903)

Orchids; their culture and management. With descriptions of all the kinds in general cultivation - Bean, W. J. (William Jackson), 1863 -1947 (L. U. Gill, 1890)

Orchids, their structure, history & culture - Castle, R. Lewis ("Journal of horticulture" Office, 1886)

Orchids : tropical foliage plants, 1955 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Alberts & Merkel Bros., Inc, 1955)

Orchids : tropical foliage plants, 1956 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Alberts & Merkel Bros., Inc, 1956)

Orchids, tropical foliage plants : 1958-1959 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Alberts & Merkel Bros., Inc, 1958)

Orchids, tropical foliage plants : 1959-1960 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Alberts & Merkel Bros., Inc, 1959)

Orchis :Monatsschrift der Deutschen Gesellschaft für Orchideenkunde - Dammer, Udo. (1906)

Orchis :Monatsschrift der Deutschen Gesellschaft für Orchideenkunde - Dammer, Udo. (1907)

Orchis :Monatsschrift der Deutschen Gesellschaft für Orchideenkunde - Dammer, Udo. (1908)

Orchis :Monatsschrift der Deutschen Gesellschaft für Orchideenkunde - Dammer, Udo. (1909)

Orchis :Monatsschrift der Deutschen Gesellschaft für Orchideenkunde - Dammer, Udo. (1910)

Orchis :Monatsschrift der Deutschen Gesellschaft für Orchideenkunde - Dammer, Udo. (1914)

Orchis :Monatsschrift der Deutschen Gesellschaft für Orchideenkunde - Dammer, Udo. (1915)

Orchis :Monatsschrift der Deutschen Gesellschaft für Orchideenkunde - Dammer, Udo. (1919)

Orchis :Monatsschrift der Deutschen Gesellschaft für Orchideenkunde - Dammer, Udo. (1920)

Oréades - Instituto de Ciências Biológicas da UFMG. Departamento de Botânica. (Departamento de Botânica, U.F.M.G, 1970)

Organographie vegetale ; ou, Description raisonnee des organes des plantes, pour servir de suite et de developpement a la theorie elementaire de la botanique, et d'introduction a la physiologie vegetale et a la description des familles, avec 60 planches en taille-douce - Candolle, Augustin Pyramus de, 1778 -1841 (Chez Deterville, libraire, rue Hautefeuille, no.8, 1827)

Organography of plants, especially of the archegoniatae and spermaphyta - Goebel, K. (Karl), 1855 -1932 (Clar. Press, 1900)

Florist's journal (How and Parsons, 1840)

Florist's journal (How and Parsons, 1842)