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)

Phytoneuron (Guy L. Nesom, 2012)

Phytoneuron (Guy L. Nesom, 2015)

Phytopathologie. Die krankheiten der culturgewächse. Für land- und forstwirthe, gärtner und botaniker - Hallier, Ernst, 1831 -1904 (W. Engelmann, 1868)

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

Le piante vascolari raccolte dal Rev. P.C. Silvestri nell'Hu-peh, durante gli anni 1904-1907 (e negli anni 1909, 1910) - Silvestri, Cipriano. (Pellas, 1911)

Die Pilze Böhmens - Bubák, František, 1866 -1925 (In Commission bei F. ivna, 1908)

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)

Piping plover habitat classification and inventory for selected grassland region lakes - Alberta Land; Forest Services. (Alberta Environment, Land and Forest Service, Resource Data Division, Ecosystem Data Section, 1999)

Plant associations of region two : potential plant communities of Wyoming, South Dakota, Nebraska, Colorado, and Kansas - Johnston, Barry C. (USDA Forest Service, Rocky Mountain Region, 1987)

Plant community types of sand dunes and sand plains in selected areas of the boreal natural region - Alberta. Alberta Sustainable Resource Development. (The Company, 2005)

Plant-life - Hall, Charles A. (Charles Albert), 1872 -1965 (A. & C. Black, 1915)

Plant-life - Hall, Charles A. (Charles Albert), 1872 -1965 (Black, 1915)

Plant list : India - Biswas, K. (Kalipada), 1899 -1969 (1939)

Plant lists : Borneo - Elmer, A. D. E. (Adolph Daniel Edward), 1870 -1942 (1921)

Plant relations in North Dakota - Gilmore, Melvin R. (Melvin Randolph), 1868 -1940 (University of North Dakota, 1921)

Plant species of special concern and plant associations of Sheridan County, Montana - Heidel, Bonnie L. (Montana Natural Heritage Program, 2000)

Plant specimen labels : Indonesia - Sangat-Roemantyo, Harini (1988)

The Plant world - Plant World Association. (Plant World Association [etc.], 1915)

Plantae diaphoricae florae Argentinae, ó, Revista sistemática de las plantas medicinales, alimenticias ó de alguna otra utilidad y de las venenosas, que son indígenas de la República Argentina ó que, originarias de otros países se cultivan ó se crian éspontáneamente en ella - Hieronymus, G. (Georg), 1846 -1921 (G. Kraft, 1882)

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 Novae Hispaniae : nutu, ope, et auspicio benignissimi regis Caroli IV, Hucusque collectae, et Linneano systemate ordinatae, quarum tercentae aut plures a nemine unquam editae videntur et rariores iconibus ad vivum repraesentatur - Sessé, Martin, 1809 (Oficina tip. de la Secretaría de fomento, 1893)

Plantæ Woodfordienses : a catalogue of the more perfect plants growing spontaneously about Woodford, in the county of Essex - Warner, Richard, 1713? -1775 (Printed for the author, 1771)

The plants of Michigan; simple keys for the identification of the native seed plants of the state - Gleason, Henry A. (Henry Allan), 1882 -1975 (G. Wahr, 1918)

Plants of Monroe County, New York, and adjacent territory - Beckwith, Florence. (1896)

The plants of Prince Edward Island - Erskine, D. S. (David Sterling) (Research Branch, Agriculture Canada, 1985)

The plants of Prince Edward Island - Erskine, D. S. (David Sterling) (Plant Research Institute, Research Branch, Canada Dept. of Agriculture, 1960)

Plants of Riding Mountain National Park, Manitoba - Canadian Parks Service. (Research Branch, Agriculture Canada, 1988)

Plants of the Punjab : a descriptive key to the flora of the Punjab, North-west Frontier Province, and Kashmir - Bamber, Charles James, 1855 - (Supt. Govt. Printing, Punjab, 1916)

Plants of the Punjab; a descriptive key to the flora of the Punjab, North-west Frontier Province and Kashmir - Bamber, Charles James, 1855 - (Printed by The Superintendent Government Printing, 1916)

Pollination biology of Silene spaldingii - Lesica, Peter. (Montana Natural Heritage Program, 1996)

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 (1864)

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)

Rapport annuel = Annual report - Société Provancher d'histoire naturelle du Canada. (Provancher Society of Natural History of Canada, 1947)

Practical agriculture - James, C. C. (Charles Canniff), 1863 -1916 (D. Appleton and company, 1899)

Practical agriculture - James, C. C. (Charles Canniff), 1863 -1916 (D. Appleton, 1899)

Practical crop protection - Alberta. Soil; Crop Management Branch. (Alberta Agriculture, Food and Rural Development, 1994)

Practical directory for the improvement of landed property ... and the economic cultivation of its farms - Burn, Robert Scott, 1825 -1901 (1881)

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

... A preliminary catalogue of the flora of New Jersey - Britton, Nathaniel Lord, 1859 -1934 (Office of the survey, 1881)

A preliminary catalogue of the flora of New Jersey - Britton, Nathaniel Lord, 1859 -1934 (Office of the Survey, 1881)

A preliminary check list of the cryptogams and phanerogams in the vicinity of Saint Louis, Missouri - Engelmann Botanical Club. Check List Committee. (The Club, 1911)

A preliminary classification of plant communities in the central Parkland natural sub-region of Alberta - Alberta. Alberta Sustainable Resource Development. (Geowest Environmental Consultants Ltd, 2002)

Preliminary inventory of Canadian weeds - Crompton, Clifford W. (Agriculture Canada, Research Branch, 1988)

Preliminary list of plants growing without cultivation in the vicinity of Manchester, New Hampshire - Batchelder, Frederick William. (Manchester institute of arts and sciences, 1909)

Preliminary report on the forest and other vegetation of Pegu - Kurz, Wilhelm Sulpiz, 1834 -1878 (C.B. Lewis, Baptist Mission Press, 1875)

Preliminary report on the forest and other vegetation of Pegu - Kurz, Wilhelm Sulpiz, 1834 -1878 (Lewis, 1875)

Price list of chemical and bacteriological apparatus, chemicals and reagents manufactured and sold by Baird [and] Tatlock (London) Ltd - Baird; Tatlock, Ltd., London, (Baird [and] Tatlock, 1914)

Prima lineae florae Herbipolensis - Lehmann, Johann Friedrich. (Nitribitt, 1809)

Principal range plants of the central and southern Rocky Mountains : names and symbols - Nickerson, Mona F. (Rocky Mountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1976)

The principles of plant culture; a text for beginners in agriculture and horticulture - Jones, L. R. (Lewis Ralph), 1864 -1945 (Macmillan, 1916)

Principles of plant culture; an elementary treatise designed as a text-book for beginners in agriculture and horticulture - Goff, E. S. (Emmett Stull), 1852 -1902 (The Author, 1899)

Principles of plant culture; an elementary treatise designed as a text-book for beginners in agriculture and horticulture - Goff, E. S. (Emmett Stull), 1852 -1902 (University Co-operative Co, 1912)

Principles of plant culture; an elementary treatise designed as a text-book for beginners in agriculture and horticulture - Goff, E. S. (Emmett Stull), 1852 -1902 (The author, 1897)

Principles of plant culture; an elementary treatise designed as a text-book for beginners in agriculture and horticulture - Goff, E. S. (Emmett Stull), 1852 -1902 (1897)

Principles of plant culture; an elementary treatise designed as a text-book for beginners in agriculture and horticulture - Goff, E. S. (Emmett Stull), 1852 -1902 (University Co-operative Co, 1906)

Prirodoslovna istraživanja - Jugoslavenska akademija znanosti i umjetnosti. (1916)

Problem analysis for the Vegetation Diversity Project : a research and demonstration program to restore and maintain native plant diversity on deteriorated rangelands of the Great Basin and Columbia Plateau - United States. Bureau of Land Management. (Bureau of Land Management, Oregon State Office, 1993)

Proceedings - Nova Scotian Institute of Science. (1866)

Proceedings - Dorset Natural History; Archaeological Society.

Proceedings - University of Illinois at Urbana-Champaign. College of Agricultural, Consumer; Environmental Sciences. (University of Illinois at Urbana-Champaign, College of Agricultural, Consumer and Environmental Sciences, University of Illinois Extension, 1999)

Proceedings - University of Illinois at Urbana-Champaign. College of Agricultural, Consumer; Environmental Sciences. (University of Illinois at Urbana-Champaign, College of Agricultural, Consumer and Environmental Sciences, University of Illinois Extension, 2002)

Proceedings and transactions of the British Entomological and Natural History Society - British Entomological; Natural History Society. (British Entomological and Natural History Society, 1970)

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 Croydon Natural History and Scientific Society - Croydon Natural History; Scientific Society. (Croydon Natural History and Scientific Society, 1906)

Proceedings and transactions of the Croydon Natural History and Scientific Society - Croydon Natural History; Scientific Society. (Croydon Natural History and Scientific Society, 1907)

Proceedings and transactions of the Natural History Society of Glasgow - Natural History Society of Glasgow. (The Society, 1886)

Proceedings and transactions of the Natural History Society of Glasgow - Natural History Society of Glasgow. (The Society, 1889)

Proceedings and transactions of the Nova Scotian Institute of Natural Science - Nova Scotian Institute of Natural Science. (Nova Scotian Institute of Natural Science, 1863)

Proceedings and transactions of the Royal Society of Canada. Délibérations et mémoires de la Société royale du Canada - Royal Society of Canada. (Société royale du Canada, 1883)

Proceedings and transactions of the Royal Society of Canada. Délibérations et mémoires de la Société royale du Canada - Royal Society of Canada. (Société royale du Canada, 1920)

Proceedings and transactions of the South London Entomological & Natural History Society - South London Entomological; Natural History Society (The Society, 1935)

Proceedings and transactions of the South London Entomological & Natural History Society - South London Entomological; Natural History Society (The Society, 1938)

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, 1962)

Proceedings - Cambridge Philosophical Society. Mathematical and physical sciences - Cambridge Philosophical Society. (Cambridge Philosophical Society [etc.], 1910)

Proceedings - Dorset Natural History and Archaeological Society - Dorset Natural History; Archaeological Society. (1877)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1912)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1902)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1901)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1930)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1940)

Proceedings of the Botanical Society of the British Isles - Botanical Society of the British Isles. (1954)

Proceedings of the Botanical Society of the British Isles - Botanical Society of the British Isles. (1956)

Proceedings of the Botanical Society of the British Isles - Botanical Society of the British Isles. (1960)

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

Proceedings of the Botanical Society of the British Isles - Botanical Society of the British Isles. (1965)

Proceedings of the Botanical Society of the British Isles - Botanical Society of the British Isles. (1967)

Proceedings of the Bristol Naturalists' Society - Bristol Naturalists' Society (Bristol, England) (Bristol Naturalists' Society, 1885)

Proceedings of the Bristol Naturalists' Society - Bristol Naturalists' Society (Bristol, England) (Bristol Naturalists' Society, 1892)

Proceedings of the Bristol Naturalists' Society - Bristol Naturalists' Society (Bristol, England) (Bristol Naturalists' Society, 1928)

Proceedings of the Bristol Naturalists' Society - Bristol Naturalists' Society (Bristol, England) (Bristol Naturalists' Society, 1939)

Proceedings of the Bristol Naturalists' Society - Bristol Naturalists' Society (Bristol, England) (Bristol Naturalists' Society, 1944)

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)

Proceedings of the Bristol Naturalists' Society - Bristol Naturalists' Society (Bristol, England) (Bristol Naturalists' Society, 1964)

Proceedings of the Entomological Society of Washington - Entomological Society of Washington (Entomological Society of Washington, 1988)

Proceedings of the Entomological Society of Washington - Entomological Society of Washington (Entomological Society of Washington, 2007)

Proceedings of the fifth Prairie Conservation and Endangered Species Workshop : February 1998 at the Saskatoon Inn, Saskatoon, SK - Provincial Museum of Alberta. (Curatorial Section, Provincial Museum of Alberta, 1998)

Proceedings of the Geological and Polytechnic Society of the West Riding of Yorkshire - Geological; Polytechnic Society of the West Riding of Yorkshire. ([Geological and Polytechnic Society of the West Riding of Yorkshire], 1839)

Proceedings of the Indiana Academy of Science - Indiana Academy of Science. ([s.n.], 1916)

Proceedings of the Indiana Academy of Science - Indiana Academy of Science. ([s.n.], 1922)

The Proceedings of the Iowa Academy of Science - Iowa Academy of Science (The Academy, 1913)

The Proceedings of the Iowa Academy of Science - Iowa Academy of Science (The Academy, 1915)

The Proceedings of the Iowa Academy of Science - Iowa Academy of Science (The Academy, 1918)

Proceedings of the Linnean Society of London - Linnean Society of London. (Published for the Linnean Society of London by Academic Press [etc.], 1875)