The Plant world - Plant World Association. (Plant World Association [etc.], 1919)

Plantae Brasiliae centralis a Glaziou lectae = Liste des plantes du Bre´sil central recueillies en 1861-1895 - Glaziou, A. F. M. (Auguste Franois Marie), 1828 -1906 (Au sige de la Socit, 1910)

Plantae Fendlerianae Novi-Mexicanae :an account of a collection of plants made chiefly in the vicinity of Santa Fe´ New Mexico, by Augustus Fendler - Gray, Asa, 1810 -1888 (1848)

Plantae Hasslerianae, soit énumération des plantes recoltées au Paraguay par le dr. Emile Hassler ... - Chodat, R. (Robert), 1865 -1934 (Impr. Romet, 1898)

Plantae javanicae rariores, adjectis nonnullis exoticis, in Javae hortis cultis descriptae - Hasskarl, J. K. (Justus Karl), 1811 -1894 (Sumptibus A. Foerstner, 1848)

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)

Plantae Novae Hispaniae : nutu, ope, et auspicio benignissimi regis Caroli IV, adùc usque collectae, et Linneano systemate ordinatae, quarum tercentae aut plures a nemine unquam editae videntur et rariores iconibus ad vivum repraesentantur - Sessé, Martin, 1809 (Apud I. Escalante, 1887)

Plantae vasculares seu cotyledoneae Scandanaviae, nempe Sveciae et Norvegiae : juxta regni vegetabilis systema naturale digestae - Beurling, Pehr Johan, 1800 -1866 (P. A. Norstedt, 1859)

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

Plantarum effigies - Fuchs, Leonhart, 1501 -1566 (Chez Balthazar Arnoullet, 1549)

Plantarum vascularium genera :secundum ordines naturales digesta eorumque differentiae et affinitates tabulis diagnostacis expositae - Weidmann. (Libraria Weidmannia, 1836)

Plantas nuevas chilenas ... - Philippi, Rodolfo Amando, 1808 -1904 (Impr. Cervantes, 1893)

Plantas Romaniae hucusque cognitas - Kanitz, Ágost, 1843 -1896 (Apud E. Demjén, 1879)

Plantenkunde voor Indië - Haak, J. (G. C. T. Van Dorp & Co, 1892)

Plantes toxiques du Canada - Mulligan, Gerald A., 1928 - (Agriculture Canada, 1990)

Plantkundig woordenboek voor Nederlandsch Indië : met korte aanwijzingen van het geneeskundig- en huishoudelijk gebruik der planten, en vermelding der verschillende inlandsche wetenschappelijke benamingen - Filet, G. J., 1825 -1891 (J.H. de Bussy, 1888)

Plants & gardens - Brooklyn Botanic Garden. (Brooklyn Botanic Garden, 1990)

Plants; a text-book of botany - Coulter, John Merle, 1851 -1928 (D. Appleton and company, 1900)

Plants and their ways in South Africa - Stoneman, Bertha M., 1866 -1943 (Longmans, Green and Co, 1906)

Plants and their ways in South Africa - Stoneman, Bertha M., 1866 -1943 (Longmans, Green, 1915)

Plants of Iowa; a preliminary list of the native and introduced plants of the state, not under cultivation - Greene, Wesley. (Bishard brothers, printers, 1907)

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 Mississippi : a list of flowering plants and ferns - Lowe, E. N. (Ephraim Noble), 1864 -1933 (Mississippi State Geological Survey, 1921)

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

Plants of possible insecticidal value : a review of the literature up to 1941 - United States. Office of Experiment Stations. (U.S. Dept. of Agriculture, Agricultural Research Administration, Bureau of Entomology and Plant Quarantine, 1945)

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

Plants of Rhode Island : being an enumeration of plants growing without cultivation in the State of Rhode Island - Bennett, James Lawrence, 1832 -1904 (Providence Press, 1888)

The plants of Southern New Jersey; with especial reference to the flora of the Pine Barrens and the geographic distribution of the species - Stone, Witmer. 1866 -1939 (1911)

The plants of Southern New Jersey with especial reference to the flora of the pine barrens and the geographic distribution of the species - Stone, Witmer. 1866 -1939 (1911)

Plants of the Bahamas, Jamaica and Grand Cayman - Hitchcock, A. S. (Albert Spear), 1865 -1935 (1893)

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 U.S. Military Academy, West Point, New York - Barringer, Kerry Alan (Brooklyn Botanic Garden, 1990)

Plants of west-central Montana : identification and ecology : annotated checklist - Intermountain Research Station (Ogden, Utah) (U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station, 1986)

Plants; a text-book of botany - Coulter, John Merle, 1851 -1928 (D. Appleton, 1907)

Plants : a text-book of botany - Coulter, John Merle, 1851 -1928 (D. Appleton and Company, 1907)

A pocket synopsis of the families of British flowering plants : (based upon the system of Engler) - Grove, W. B. (William Bywater), 1848 -1938 (University Press, 1915)

Poisonous plants of all countries - Bernhard-Smith, Arthur. (Baillière, Tindall & Cox, 1923)

Poisonous plants of Canada - Mulligan, Gerald A., 1928 - (Agriculture Canada, 1990)

The poisonous plants of New Jersey - Halsted, Byron D. (Byron David), 1852 -1918 (New Jersey Agricultural Experiment Stations, 1899)

Poisonous plants of the Midwest - University of Illinois at Urbana-Champaign. Dept. of Landscape Architecture. (Dept. of Landscape Architecture, University of Illinois, 1983)

Polymeric nucleic acids from citrus fruits and leaves in various stages of growth and development including chemically modified senescence - Ismail, Mohamed Abdel-hehim, 1938 - (1966)

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

Popular errors about plants - Crozier, A. A. (Arthur Alger), 1856 -1899 (Rural Pub. Co, 1891)

Popular errors about plants - Crozier, A. A. (Arthur Alger), 1856 -1899 (Rural publishing company, 1892)

A popular flora of Denver, Colorado - Eastwood, Alice, 1859 -1953 (Zoe Publishing Company, 1893)

The Popular science monthly - Harry Houdini Collection (Library of Congress) (Popular Science Pub. Co., etc, 1894)

Popular Science Review (1867)

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)

The Portland catalogue of Maine plants - Portland Society of Natural History (Me.) (Transcript Print, 1868)

The Portland catalogue of Maine plants - Portland Society of Natural History (Me.) (Portland society of natural history, 1892)

Posthumous papers bequeathed to the honorable the East India company, and printed by order of the government of Bengal ... - Griffith, William, 1810 -1845 (Bishop's College Press, 1847)

Posthumous papers bequeathed to the honorable the East India company, and printed by order of the government of Bengal ... - Griffith, William, 1810 -1845 (Bishop's College Press, 1854)

Pozsonyi Orvos-Termeszettudomanyi Egyesulet Kozlemenyei - Verein für natur- und heilkunde, Pressburg (1901)

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 botany, structural and systematic, the latter portion being an analytical key to the wild flowering plants, trees, shrubs, ordinary herbs, sedges and grasses of the northern and middle United States east of the Mississippi - Koehler, August (H. Holt and Company, 1876)

The practical home farmer, a popular guide for the farm and fireside - Munroe, F. L., (Union printing company, 1886)

Praterflora. Beschreibung der im K.K. Prater und in der Brigittenau ausserhalb der Gärten wildwachsenden und angebauten Pflanzen - Bayer, Johann Nepomuk, 1802 -1870 (Wilhelm Braumüller, 1869)

Precis Analytique des Travaux de l'Academie des Sciences, Belles-Lettres et Arts de Rouen - Académie des sciences, belles lettres & arts de Rouen (1824)

Preliminary catalog of Anthophyta and Pteridophyta, reported as growing spontaneously within one hundred miles of New York City - Torrey Botanical Club. (1888)

Preliminary catalogue of Anthophyta and Pteridophyta, reported as growing spontaneously within one hundred miles of New York City - Torrey Botanical Club. (1888)

Preliminary catalogue of indigenous Natal plants - Wood, John Medley, 1827 -1915 ("Natal Mercury" steam printing works, 1894)

Preliminary catalogue of plants poisonous to stock - Chesnut, V. K. (Victor King), 1867 -1938 (1898)

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 catalogue of the flora of Vancouver and Queen Charlotte Islands - British Columbia Provincial Museum. (Printed by W. H. Cullin, 1921)

Preliminary catalogue of the flora of West Virginia - Millspaugh, Charles Frederick, 1854 -1923 (1892)

A preliminary catalogue of the flowering plants and higher cryptogams growing without cultivation within thirty miles of Hanover, N.H., to which is appended a list of the vertebrates of the same region - Jesup, Henry G. (Henry Griswold), 1826 -1903 (N.A. McClary, 1882)

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

A preliminary list of the Hemiptera of Colorado - Colorado Agricultural Experiment Station (American Standard, 1895)

A preliminary list of the parasitic fungi of Idaho - United States. Division of Mycology; Disease Survey. (Division of Mycology and Disease Survey, Bureau of Plant Industry, United States Department of Agriculture, 1936)

A preliminary list of the plants of New Brunswick - Fowler, James, 1829 -1923 (Ellis, Robertson & Co, 1885)

A preliminary list of the Uredinales of California - Blasdale, Walter Charles, 1871 -1960 (University of California press, 1919)

A preliminary list of the vascular flora of Allegheny County, Pennsylvania - Shafer, John Adolph, 1863 -1918 (Carnegie Institute Museum?, 1901)

A preliminary list of the vascular plants of the Lackawanna and Wyoming valleys - Dudley, William Russel, 1849 -1911 (The Republican Press, 1887)

A preliminary report on the biology of Harding County, northwestern South Dakota - Visher, Stephen Sargent, 1887 -1967 (State Publishing Co, 1914)

Preussens Flora, oder, Systematisches Verzeichniss der in Preussen wildwachsenden Pflanzen, mit jeder Pflanze beigefügten Bemerkungen in ökonomischer, technologischer und medizinischer Hinsicht, nach einer das Aufsuchen der Pflanzen erleichternden und sicher leitenden Methode - Graff, Eberhard Gottlieb, 1780 -1841 (Beim Verfasser, 1809)

Primae lineae systematis naturæ : nexui naturali omnium evolutionique progressivae per nixus reascendentes superstructi - Gori͡aninov, Pavel Fedorovich, 1796 -1865 (Typis Karoli Krajanis, 1834)

Primarum linearum institutionum botanicarum clarissimi viri Crantzii editio altera, continens characteristicas omnium classium icones, additamenta novorum generum et specierum - Crantz, Heinrich Johann Nepomuk von, 1722 -1799 (J.P. Kraus, 1767)

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)

Principia botanica: or, a concise and easy introduction to the sexual botany of Linnaeus ... - Linné, Carl von, 1707 -1778 (Printed by Allin and co. and sold by G. G. J. and J. Robinson, London, 1787)

Principia botanica: or, A concise and easy introduction to the sexual botany of Linnaeus ... Arranged in a tabular form, under each class and order; and digested alphabetically under several generic distinctions. Together with three indexes ... Also a table of several vegetable drugs not in the indexes ... - Darwin, Robert Waring, 1724 -1816 (Printed and sold by M. Hage; [etc., etc.], 1810)

The principles of botany, structural, functional and systematic, condensed and immediately adapted to the use of students of medicine - Willshire, William Hughes 1816 -1899 (Hightley, 1840)

Principles of plant physiology - Raber, Oran, 1893 -1940 (The Macmillan Co, 1938)

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

Proceedings - Dorset Natural History; Archaeological Society.

Proceedings. 5th Biology Conference "Oholo" 1960 - Grossowicz, Nathan. (Elsevier Pub. Co, 1961)

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

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, 1919)

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, 1885)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1889)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1900)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1909)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1911)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1913)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1841)

Proceedings of the American Academy of Arts and Sciences - American Academy of Arts; Sciences. (Metcalf and Co, 1882)

Proceedings of the American Philosophical Society held at Philadelphia for promoting useful knowledge - American Philosophical Society. (American Philosophical Society, 1918)

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, 1898)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1920)