Die Pilze (Fungi) von Tirol, Vorarlberg und Liechtenstein - Magnus, P. (Paul), 1844 -1914 (Verlag der Wagner'schen Universitts-Buchh, 1905)

Die Pilze Schlesiens - Schroeter, J. (J.U. Kern's Verlag, 1889)

Pinax Theatri botanici Caspari Bauhini : ... sive Index in Theophrasti, Dioscoridis, Plinii et botanicorum qui à seculo scripserunt opera: plantarum circiter sex millium ab ipsis exhibitarum nomina cum earundem synonymiis & differentiis methodicè secundùm earum & genera & species proponens. Opus XL. annorum hactenus non editum summoperè expetitum & ad auctores intelligendos plurimùm faciens ... - Bauhin, Caspar, 1560 -1624 (sumptibus et typis Ludovici Regis, 1623)

Plant explorations : ornamentals in Italy, southern France, Spain, Portugal, England, and Scotland - Meyer, Frederick G. 1917 -2006 (U. S. Dept. of Agriculture in cooperation with Longwood Gardens of the Longwood Founcation, 1959)

Plant explorations : ornamentals in the Netherlands, West Germany, and Belgium - Meyer, Frederick G. 1917 -2006 (Agricultural Research Service, U.S. Dept. of Agriculture, 1963)

Plant Form - Bell, Adrian D. (OXFORD UNIVERSITY PRESS, 1991)

Plant-geography upon a physiological basis - Balfour, Isaac Bayley, 1853 -1922 (Clarendon Press, 1903)

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Plantae Europeae.Enumeratio systematica et synonymica plantarum phaenerogamicarum in Europa sponte crescentium vel mere inquilinarum - Richter, Karl, 1855 -1891 (W. Engelmann, 1890)

Plantae Wilsonianae :an enumeration of the woody plants collected in western China for the Arnold arboretum of Harvard university during the years 1907, 1908, and 1910 - Sargent, Charles Sprague, 1841 -1927 (The University press, 1917)

Plantae Wilsonianae; an enumeration of the woody plants collected in western China for the Arnold arboretum of Harvard university during the years 1907, 1908, and 1910 - Sargent, Charles Sprague, 1841 -1927 (University Press, 1917)

Plantarum Belgii confoederati indigenarum spicilegium : quo Dav. Gorteri viri cl. Flora VII. provinciarum loculetatur - Gorter, David de, 1717 -1783 (Apud Joannem van Kasteel, 1788)

Plants & gardens - Brooklyn Botanic Garden. (Brooklyn Botanic Garden, 1949)

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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)

Practical hints for the field lepidopterist I - Tutt, James William, 1858 -1911 (E. Stock, 1908)

The practice of forestry, concerning also the financial aspect of afforestation - Maw, Percival Trentham. (T.F. Unwin, 1909)

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Precis Analytique des Travaux de l'Academie des Sciences, Belles-Lettres et Arts de Rouen - Académie des sciences, belles lettres & arts de Rouen (1859)

Prehistoric Europe, a geological sketch - Geikie, James, 1839 -1915 (E. Stanford, 1881)

Prehistoric Europe : a geological sketch - Darwin, Charles, 1809 -1882 (Edward Stanford, 1881)

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Proceedings and transactions of the British Entomological and Natural History Society - British Entomological; Natural History Society. (British Entomological and Natural History Society, 1976)

Proceedings and transactions of the British Entomological and Natural History Society - British Entomological; Natural History Society. (British Entomological and Natural History Society, 1983)

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Proceedings and transactions of the Croydon Natural History and Scientific Society - Croydon Natural History; Scientific Society. (Croydon Natural History and Scientific Society, 1908)

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Proceedings and transactions of the South London Entomological & Natural History Society - South London Entomological; Natural History Society (The Society, 1943)

Proceedings and transactions of the South London Entomological & Natural History Society - South London Entomological; Natural History Society (The Society, 1950)

Proceedings and transactions of the South London Entomological & Natural History Society - South London Entomological; Natural History Society (The Society, 1953)

Proceedings and transactions of the South London Entomological & Natural History Society - South London Entomological; Natural History Society (The Society, 1956)

Proceedings and transactions of the South London Entomological & Natural History Society - South London Entomological; Natural History Society (The Society, 1959)

Proceedings and transactions of the South London Entomological & Natural History Society - South London Entomological; Natural History Society (The Society, 1962)

Proceedings and transactions of the South London Entomological & Natural History Society - South London Entomological; Natural History Society (The Society, 1965)

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Proceedings of the Bath Natural History and Antiquarian Field Club - Bath Natural History; Antiquarian Field Club. (1886)

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Proceedings of the Botanical Society of the British Isles - Botanical Society of the British Isles. (1963)

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Proceedings of the Bristol Naturalists' Society - Bristol Naturalists' Society (Bristol, England) (Bristol Naturalists' Society, 1949)

Proceedings of the Bristol Naturalists' Society - Bristol Naturalists' Society (Bristol, England) (Bristol Naturalists' Society, 1954)

Proceedings of the Bristol Naturalists' Society - Bristol Naturalists' Society (Bristol, England) (Bristol Naturalists' Society, 1959)

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Proceedings of the section of sciences - Koninklijke Akademie van Wetenschappen (Netherlands) (Johannes Müller, 1909)

Proceedings of the South London Entomological & Natural History Society - South London Entomological; Natural History Society (South London Entomological and Natural history Society, 1899)

Proceedings of the South London Entomological & Natural History Society - South London Entomological; Natural History Society (South London Entomological and Natural history Society, 1901)

Proceedings of the South London Entomological & Natural History Society - South London Entomological; Natural History Society (South London Entomological and Natural history Society, 1914)

Proceedings of the South London Entomological & Natural History Society - South London Entomological; Natural History Society (South London Entomological and Natural history Society, 1932)

Procès-verbaux - Société Linnéenne de Bordeaux. (1895)

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Procès-verbaux - Société Linnéenne de Bordeaux. (1917)