The Orchadian - Australasian Native Orchid Society (The Society, 1996)

The orchid manual : for the cultivation of stove, greenhouse, and hardy orchids, with a calendar of monthly operations, and classified lists of species - Appleby, Thomas. (Journal of Horticulture and Cottage Gardener Office, 1861)

The Orchid review (Orchid Review ltd.], 1893)

The Orchid review (Orchid Review ltd.], 1900)

The Orchid review (Orchid Review ltd.], 1905)

The Orchid review (Orchid Review ltd.], 1906)

The Orchid review (Orchid Review ltd.], 1907)

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

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

The Orchid review (Orchid Review ltd.], 1916)

The Orchid review (Orchid Review ltd.], 1919)

The Orchid review (Orchid Review ltd.], 1920)

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)

The Orchid world. A monthly illustrated journal entirely devoted to orchidology - Wilson, Gurney, 1878 - (Alabaster, Passmore & Sons, ltd., printers], 1913)

Orchidacearum genera et species Vol.1-[2, pars 1] - Kraenzlin, Fritz, 1847 -1934 (Mayer & Müller, 1901)

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

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)

Orchidophile; journal des amateurs d'orchideés - Godefroy-Lebeuf, A. (Alexandre), 1844 -1903 (1882)

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 (1888)

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

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

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

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)

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

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

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)

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

Florist's journal (How and Parsons, 1844)

Outdoor life in England - Fisher, Arthur T. (R. Bentley and son, 1896)

Over de bevruchting der bloemen in het kempisch gedeelte van Vlaanderen - MacLeod, Julius, 1857 -1919 (Vuylsteke, 1894)

Le pâturage en forêt / par Alphonse Mathey - Mathey, Alphonse. (Imp. et lith. de P. Jacquin, 1900)

Palestine Exploration Fund : quarterly statement - Palestine Exploration Fund. (The Fund, 1888)

Papers on pollination - Darwin, Charles, 1809 -1882 (1861)

Part first of a supplement to the Cybele Britannica : to be continued occasionally as a record of progressive knowledge concerning the distribution of plants in Britain - Watson, Hewett Cottrell, 1804 -1881 (Printed for private distribution, 1860)

Paxton's flower garden - Lindley, John, 1799 -1865 (1853)

Paxton's magazine of botany, and register of flowering plants - Paxton, Joseph, Sir, 1803 -1865 (Orr and Smith [etc.], 1836)

Paxton's magazine of botany, and register of flowering plants - Paxton, Joseph, Sir, 1803 -1865 (Orr and Smith [etc.], 1849)

Petite flore de la Mayenne - Léveillé, H. (Hector), 1863 -1918 (Goupil, 1895)

Pflanzen-teratologie systematisch geordnet - Penzig, O. (Ottone), 1856 -1929 (A. Ciminago, 1894)

Die Pflanzendecke Österreich-Ungarns. Auf Grund fremder und eigener Forschungen geschildert - Hayek, August von, 1871 -1928 (F. Deuticke, 1914)

The Philosophical magazine and journal : comprehending various branches of science, the liberal and fine arts, agriculture, manufactures, and commerce (R. Taylor, 1824)

Philosophical notes on botanical subjects - Bonavia, E. (Emanuel), 1829 -1908 (Eyre and Spottiswoode, 1892)

Phytographia Lusitaniae selectior, seu, Novarum, rariorum, et aliarum minus cognitarum stirpium, quae in Lusitania sponte veniunt, ejusdemque flora spectant, descriptiones iconibus illustratae - Brotero, Félix de Avellar, 1744 -1828 (Ex Typographia Regia, 1816)

The Phytologist: a botanical journal - Irvine, Alexander, 1793 -1873 (William Pamplin, 1855)

The Phytologist: a botanical journal - Irvine, Alexander, 1793 -1873 (William Pamplin, 1857)

The Phytologist: a botanical journal - Irvine, Alexander, 1793 -1873 (William Pamplin, 1860)

The Phytologist: a botanical journal - Irvine, Alexander, 1793 -1873 (William Pamplin, 1861)

The Phytologist: a botanical journal - Irvine, Alexander, 1793 -1873 (William Pamplin, 1862)

The Phytologist: a popular botanical miscellany - Newman, Edward, 1801 -1876 (John van Voorst, 1841)

The Phytologist: a popular botanical miscellany - Newman, Edward, 1801 -1876 (John van Voorst, 1847)

The Phytologist: a popular botanical miscellany - Newman, Edward, 1801 -1876 (John van Voorst, 1850)

The Phytologist: a popular botanical miscellany - Newman, Edward, 1801 -1876 (John van Voorst, 1854)

Le piante fanerogame della Svissera insubrica : enumerate seconde il metodo decandolliano - Favrat, Louis, 1827 -1893 (H. Georg, 1890)

Le piante fanerogame della Svizzera insubrica : enumerate secondo il methodo decandolliano - Favrat, Louis, 1827 -1893 (H. Georg, 1890)

Plant-life; popular papers on the phenomena of botany - Step, Edward, 1855 -1931 (M. Japp & company, 1881)

Plant lore, legends, and lyrics. Embracing the myths, traditions, superstitions, and folk-lore of the plant kingdom - Folkard, Richard. (S. Low, Marston, Searle, and Rivington, 1884)

Plantæ favershamienses : a catalogue of the more perfect plants growing spontaneously about Faversham, in the county of Kent - Jacob, Edward, 1709 or 1710 -1788 (Printed for the author; by J. March, 1777)

Plantae Postianae - Autran, Eugène, 1855 -1912 (G. Bridel, 1899)

Plantes alpines & vivaces, 1933 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (H. Correvon & Fils, 1933)

Les plantes des montagnes et des rochers, leur acclimatation et leur culture dans les jardins - Correvon, Henry 1854 -1939 (L'auteur; [etc., etc.], 1914)

Plants of New Zealand - Blackwell, E. W. (Ellen Wright), 1864 -1952 (Whitcombe and Tombs, Ltd, 1906)

Popular botany; the living plant from seed to fruit - Step, Edward, 1855 -1931 (H. Holt and company, 1913)

Popular names of flowers, fruits, &c., as used in the county of Somerset and the adjacent parts of Devon, Dorset and Wilts - Macmillan, Alexander Stuart. (Western Gazette, 1922)

Popular Science Review (1865)

Popular Science Review (1873)

Popular Science Review (1879)

Populäre Botanik oder gemeinfassliche Anleitung zum Studium der Pflanze und des Pflanzenreiches. Zugleich ein Handbuch zum Bestimmen der Pflanzen auf Excursionen - Schmidlin, Eduard, 1808? -1890 (Krais & Hoffmann, 1857)

A practical guide to garden plants, containing descriptions of the hardiest and most beautiful annuals and biennials, hardy herbaceous and bulbous perennials, hardy water and bog plants, flowering and ornamental trees and shrubs, conifers; hardy ferns; hardy bamboos and other ornamental grasses. Also the best kinds of fruits and vegetables that may be grown in the open air in the British Isles with full and practical instruction as to culture and propagation - Weathers, John, 1867 -1928 (Longmans, Green, 1901)

Proceedings - Dorset Natural History; Archaeological Society.

Proceedings (and Annual Report) of the Holmesdale Natural History Club, Reigate - Holmesdale Natural History Club. (1865)

Proceedings and transactions of the British Entomological and Natural History Society - British Entomological; Natural History Society. (British Entomological and Natural History Society, 1969)

Proceedings and transactions of the British Entomological and Natural History Society - British Entomological; Natural History Society. (British Entomological and Natural History Society, 1978)

Proceedings and transactions of the British Entomological and Natural History Society - British Entomological; Natural History Society. (British Entomological and Natural History Society, 1980)

Proceedings and Transactions of the Croydon Microscopical & Natural History Club - Croydon Microscopical; Natural History Club. (1881)

Proceedings and Transactions of the Croydon Microscopical & Natural History Club - Croydon Microscopical; Natural History Club. (1901)

Proceedings and transactions of the Croydon Natural History and Scientific Society - Croydon Natural History; Scientific Society. (Croydon Natural History and Scientific Society, 1902)

Proceedings and transactions of the Croydon Natural History and Scientific Society - Croydon Natural History; Scientific Society. (Croydon Natural History and Scientific Society, 1903)