Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1988)

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, 1858)

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)

Phytoneuron (Guy L. Nesom, 2014)

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

Pierre Pena et Mathias de Lobel - Legré, Ludovic, 1838 -1904 (H. Aubertin & G. Rolle, 1899)

Plant genetics - Coulter, John Merle, 1851 -1928 (The University of Chicago Press, 1918)

Plant genetics - Coulter, John Merle, 1851 -1928 (University of Chicago Press, 1918)

Plant inventory - United States. Agricultural Research Service. (Northeastern Region, Agricultural Research Center-West, 1929)

Plant inventory - United States. Agricultural Research Service. (Northeastern Region, Agricultural Research Center-West, 1966)

Plant inventory - United States. Agricultural Research Service. (Northeastern Region, Agricultural Research Center-West, 1967)

Plant life of Alabama : an account of the distribution, modes of association, and adaptations of the flora of Alabama, together with a systematic catalogue of the plants growing in the state - Mohr, Charles (Charles Theodore), 1824 -1901 (Brown Printing Co, 1901)

Plant life of Alabama. An account of the distribution, modes of association, and adaptations of the flora of Alabama, together with a systematic catalogue of the plants growing in the state. Prepared in cooperationwith the Geological Survey of Alabama - Mohr, Charles (Charles Theodore), 1824 -1901 (Govt. Print. Off, 1901)

Plant morphogenesis - Sinnott, Edmund W. (Edmund Ware), 1888 -1958 (McGraw-Hill, 1960)

The Plant world - Plant World Association. (Plant World Association [etc.], 1911)

The Plant world - Plant World Association. (Plant World Association [etc.], 1916)

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 quaedam niloticae : quas in itinere cum divo Adalberto libero barone de Barnim facto collegit Robertus Hartmann - Schweinfurth, Georg August, 1836 -1925 (G. Reimer, 1862)

Plantae Thunbergianae : ein Verzeichnis der von C. P. Thunberg in Südafrika, Indien und Japan gesammelten und der in seinen Schriften beschriebenen oder erwähnten Pflanzen, sowie von den Exemplaren derselben, die im Herbarium Thunbergianum in Upsala aufbewahrt sind - Thunberg, Carl Peter, 1743 -1828 (A.-b. Akademiska bokhandeln, 1918)

Plantae utiliores ; or illustrations of useful plants, employed in the arts and medicine - Burnett, Gilbert T. (Gilbert Thomas), 1800 -1835 (Whittaker, 1840)

Plantæ utiliores : or illustrations of useful plants, employed in the arts and medicine - Burnett, Gilbert T. (Gilbert Thomas), 1800 -1835 (Whittaker & Co, 1850)

Plantae Utowanae. Plants collected in Bermuda, Porto Rico, St. Thomas, Culebras, Santo Domingo, Jamaica, Cuba, The Caymans, Cozumel, Yucatan and the Alacran shoals. Dec. 1898 to Mar. 1899. The Antillean cruise of the yacht Utowana. Mr. Allison V. Armour, owner and master - Millspaugh, Charles Frederick, 1854 -1923 (1900)

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

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)

Plantarum a Josepho Comollio ... in Lariensi provincia lectarum enumeratio : quam ipse in botanophilorum usu atque commodo exhibet uti prodromum florae Comensis - Comolli, Giuseppe, 1780 -1849 (C.P. Ostinelli, 1824)

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

Les plantes industrielles - Heuzé, Gustave, 1816 -1907 (L. Hachette, 1859)

Les plantes, poème - Castel, René-Richard-Louis, 1758 -1832 (L'Imprimerie de Didot Jeune, chez Deterville, 1799)

Plants poisonous to live stock - Long, Harold C. (Harold Cecil), 1876 - (Univ. Press, 1917)

Plants poisonous to live stock - Long, Harold C. (Harold Cecil), 1876 - (University Press, 1917)

Plants poisonous to live stock - Long, Harold C. (Harold Cecil), 1876 - (University press, 1917)

Poisonous plants in field and garden - Henslow, George, 1835 -1925 (Society for Promoting Christian Knowledge, 1901)

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)

Popular field botany; containing a familiar and technical description of the plants most common to the various localities of the British Isles, adapted to the study of either the artificial or natural systems - Catlow, Agnes, 1807? -1889 (Reeve, Benham, and Reeve, 1848)

Popular field botany; containing a familiar and technical description of the plants most common to the various localities of the British Isles, adapted to the study of either the artificial or natural systems - Catlow, Agnes, 1807? -1889 (Reeve, Benham & Reeve, 1849)

The Popular science monthly - Harry Houdini Collection (Library of Congress) (Popular Science Pub. Co., etc, 1896)

Populäre biologische Vorträge - Molisch, Hans, 1856 -1937 (G. Fischer, 1922)

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)

Populäre Naturgeschichte der drei Reiche - Jussieu, Adrien de, 1797 -1853 (Verlag von Scheible, Rieger & Sattler, 1845)

Pozsonyi Orvos-Termeszettudomanyi Egyesulet Kozlemenyei - Verein für natur- und heilkunde, Pressburg (1884)

Practical plant biochemistry - Onslow, Muriel Wheldale 1880 -1932 (University Press, 1923)

Practical plant biochemistry - Onslow, Muriel Wheldale 1880 -1932 (University Press, 1920)

Practical plant biochemistry - Onslow, Muriel Wheldale 1880 -1932 (University press, 1920)

Praenunciae bahamenses– I. Contributions to a flora of the Bahamian archipelago - Millspaugh, Charles Frederick, 1854 -1923 (1906)

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)

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

The principles of botany, and of vegetable physiology - Willdenow, Karl Ludwig, 1765 -1812 (Printed at the University Press, for William Blackwood, 1805)

The principles of botany, and of vegetable physiology / translated from the German of D.C. Willdenow - Willdenow, Karl Ludwig, 1765 -1812 (Blackwood, 1811)

The principles of plant-teratology - Worsdell, Wilson Crosfield (The Ray Society, 1915)

Principles of the anatomy and physiology of the vegetable cell - Mohl, Hugo von, 1805 -1872 (J. Van Voorst, 1852)

Principles of the anatomy and physiology of the vegetable cell - Mohl, Hugo von, 1805 -1872 (John Van Voorst, 1852)

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

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, 1987)

Proceedings and Transactions of the Croydon Microscopical & Natural History Club - Croydon Microscopical; Natural History Club. (1895)

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, 1903)

Proceedings and transactions of the Natural History Society of Glasgow - Natural History Society of Glasgow. (The Society, 1892)

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, 1959)

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

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, 1877)

Proceedings of the Bath Natural History and Antiquarian Field Club - Bath Natural History; Antiquarian Field Club. (1867)

Proceedings of the Bath Natural History and Antiquarian Field Club - Bath Natural History; Antiquarian Field Club. (1890)

Proceedings of the Belfast Natural History and Philosophical Society - Belfast Natural History; Philosophical Society. (1878)

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. (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 Bournemouth Natural Science Society - Bournemouth Natural Science Society (1932)

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, 1935)