Orchidaceele din România - Pantu, Zacharia C., 1866 -1934 (Librariile Socec & co. [etc.], 1915)

Orchidacées - Hallé, Nicolas (1977)

Les orchidées, histoire iconographique, organographie, classification, géographie, collections, commerce, emploi, culture, avec une revue descriptive des espèces cultivées en Europe; ouvrage orné de 244 vignettes et de 50 chromolithographics - Puydt, Émile de, 1810 -1891 (J. Rothschild, 1880)

Les orchidées : manuel de l'amateur - Bois, D. (Désiré), 1856 -1946 (J.-B. Baillière et fils, 1893)

Le orchidee - Pucci, Angiolo, 1851 - (U. Hoepli, 1905)

Orchideeën welke in Ned.-Indië gekweekt kunnen worden - Dakkus, P. M. W. (A. C. Nix, 1935)

Die Orchideen :ihre Beschreibung, Kultur und Zu¨chtung. Handbuch fu¨r Orchideenliebhaber, Zu¨chter und Botaniker - Schlechter, Rudolf, 1872 -1925 (P. Parey, 1915)

Orchideen-Sammlung des Herrn Martin Rücker Jenisch zu Flotbeck-Park bei Hamburg - Jenisch, Martin Rücker. (Druck von G. J. Herbst, 1887)

Die Orchideen von Ambon - Smith, J. J. (Johannes Jacobus), 1867 -1947 (Landsdrukkerij, 1905)

Die orchideen von Java - Smith, J. J. (Johannes Jacobus), 1867 -1947 (E. J. Brill, 1905)

Die orchideen von Java - Smith, J. J. (Johannes Jacobus), 1867 -1947 (E. J. Brill, 1907)

Die orchideen von Java - Smith, J. J. (Johannes Jacobus), 1867 -1947 (E. J. Brill, 1910)

Les orchidées exotiques et leur culture en Europe - Cogniaux, Alfred, 1841 -1916 (l'Auteur, 1894)

Orchidophile; journal des amateurs d'orchideés - Godefroy-Lebeuf, A. (Alexandre), 1844 -1903 (1883)

Orchidophile; journal des amateurs d'orchideés - Godefroy-Lebeuf, A. (Alexandre), 1844 -1903 (1884)

Orchidophile; journal des amateurs d'orchideés - Godefroy-Lebeuf, A. (Alexandre), 1844 -1903 (1885)

Orchidophile; journal des amateurs d'orchideés - Godefroy-Lebeuf, A. (Alexandre), 1844 -1903 (1887)

Orchidophile; journal des amateurs d'orchideés - Godefroy-Lebeuf, A. (Alexandre), 1844 -1903 (1889)

Orchidophile; journal des amateurs d'orchideés - Godefroy-Lebeuf, A. (Alexandre), 1844 -1903 (1890)

Orchidophile; journal des amateurs d'orchideés - Godefroy-Lebeuf, A. (Alexandre), 1844 -1903 (1891)

Orchids - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Julius Roehrs Company, 1911)

Orchids - O'Brien, James (Frederick A. Stokes co, 1911)

Orchids; a description of the species and varieties grown at Glen Ridge, near Boston, with lists and descriptions of other desirable kinds : preface by chapters on the culture, propagation, collection, and hybridization of orchids; the construction and management of orchid houses; a glossary of botanical terms and significance of their names; the whole forming a complete manual of orchid culture - Rand, Edward Sprague, Jr., 1834 -1897 (Houghton, Mifflin and company, 1888)

Orchids and greenhouse plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Julius Roehrs Co, 1916)

Orchids; being the report on the Orchid Conference held at South Kensington (Macmillan & Co, 1886)

Orchids - O'Brien, James (T.C. & E.C. Jack, 1911)

Orchids - O'Brien, James (T. C. & E. C. Jack, 1911)

Orchids : direct from Hawaii, nature's greenhouse - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wm. Kirch-Orchids, 1954)

Orchids direct from Hawaii - nature's greenhouse : 1955 catalog - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wm. Kirch-Orchids, Ltd, 1955)

Orchids : illustrated and descriptive catalogue and price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Lager & Hurrell, 1912)

Orchids : illustrated and descriptive catalogue and price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Lager & Hurrell, 1924)

Orchids : illustrated and descriptive catalogue and price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Lager & Hurrell, 1923)

The orchids in the Ottawa District : floristics, phytogeography, population studies and historical review / Joyce M. Reddoch and Allan H. Reddoch - Ottawa Field-Naturalists' Club (The Ottawa Field-Naturalists' Club, 1997)

The orchids of New England; a popular monograph - Baldwin, Henry, 1846 -1911 (J. Wiley, 1884)

The orchids of New England. A popular monograph - Baldwin, Henry, 1846 -1911 (J. Wiley & Sons, 1884)

Orchids of Panama : a facsimile reprint of the Orchidaceae, Flora of Panama - Williams, Louis O. 1908 -1991 (Missouri Botanical Garden, 1980)

The orchids of the Cape Peninsula - Bolus, Harry, 1834 -1911 (the Society, 1888)

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

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

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. (1915)

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

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

Oréades - Instituto de Ciências Biológicas da UFMG. Departamento de Botânica. (Departamento de Botânica, U.F.M.G, 1971)

L'origine et le développement des flores dans le massif central de France; avec aperçu sur les migrations des flores dans l'Europe sud-occidentale - Braun-Blanquet, J. (Josias), 1884 -1980 (L. Lhomme, 1923)