The Orchid review (Orchid Review ltd.], 1909)

The Orchid review (Orchid Review ltd.], 1910)

The Orchid review (Orchid Review ltd.], 1911)

The Orchid review (Orchid Review ltd.], 1912)

The Orchid review (Orchid Review ltd.], 1913)

The Orchid review (Orchid Review ltd.], 1917)

The Orchid review (Orchid Review ltd.], 1918)

The Orchid review (Orchid Review ltd.], 1923)

The Orchid world. A monthly illustrated journal entirely devoted to orchidology - Wilson, Gurney, 1878 - (Alabaster, Passmore & Sons, ltd., printers], 1911)

The Orchid world. A monthly illustrated journal entirely devoted to orchidology - Wilson, Gurney, 1878 - (Alabaster, Passmore & Sons, ltd., printers], 1912)

Orchidaceae I - Szlachetko, Dariusz L (2004)

Orchidaceae: illustrations and studies of the family Orchidaceae - Ames, Oakes, 1874 -1950 (Houghton, Mifflin, 1908)

Orchidaceae: illustrations and studies of the family Orchidaceae - Ames, Oakes, 1874 -1950 (Houghton, Mifflin, 1915)

Orchidaceae: illustrations and studies of the family Orchidaceae - Ames, Oakes, 1874 -1950 (Houghton, Mifflin, 1920)

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)

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

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

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

L'orchidophile; traité théorique et pratique sur la culture des orchidées - Du Buysson, François. (Goin, 1878)

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 (1883)

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 (1888)

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

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

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

Orchids for everyone - Curtis, Charles H. (J.M. Dent, 1910)

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

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

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

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

The organic constituents of plants and vegetable substances and their chemical analysis - Wittstein, Georg Christian, 1810 -1887 (MCarron, Bird & Co, 1878)

Organic materia medica and therapeutics : in accordance with the sixth revision of the United States Pharmacopoeia - Simpson, James Young, Sir, 1811 -1870 (J.H. Vail, 1885)

Organographie der Pflanzen, insbesondere der Archegoniaten und Samenpflanzen - Goebel, K. (Karl), 1855 -1932 (G. Fischer, 1898)

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

Origin and history of all the pharmacopeial vegetable drugs, chemicals and preparations with bibliography... Prepared under the auspices of and pub. by the American drug manufacturers' association, Washington, D.C - Lloyd, John Uri, 1849 -1936 (The Caxton press, 1921)

The origin of floral structures through insect and other agencies - Henslow, George, 1835 -1925 (K. Paul, Trench, Trübnerco, 1888)

The origin of floral structures through insect and other agencies - Henslow, George, 1835 -1925 (D. Appleton and Co, 1888)

Ornamental gardening in Florida - Simpson, Charles Torrey, 1846 -1932 (The author, 1916)

Otia botanica Hamburgensia :Fasciculus primus [-secundus, pars prima] - Reichenbach, H. G. (Heinrich Gustav) 1824 -1889 (Typis T. T. Meissneri, 1878)

An outline of plant geography (The Macmillan company, 1926)

Oxford gardens, based upon Daubeny's Popular guide to the physick garden of Oxford: with notes on the gardens of the colleges and on the University park - Gunther, R. T. (Robert Theodore), 1869 -1940 (Parker & son; [etc., etc.], 1912)

Pamphlets on forestry in California (1900)

Papers on hortcultural and kindred subjects - United States. Department of Agriculture. (1891)