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

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

A preliminary catalogue of the Bernice Pauahi Bishop museum of Polynesian ethnology and natural history ... - Bernice Pauahi Bishop Museum. (1893)

A preliminary catalogue of the Bernice Pauahi Bishop museum of Polynesian ethnology and natural history ... - Bernice Pauahi Bishop Museum. (1892)

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)

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

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)

Preliminary list of the plants growing without cultivation in Alabama - Mohr, Charles (Charles Theodore), 1824 -1901 (1880)

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

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

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Price list of California bulbs - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Carl Purdy, 1893)

A priced (and partially descriptive) Catalogue of Stove, Greenhouse and Hardy Exotic, and British Ferns : grown for sale by Abm. Stansfield & Sons ... Vale Nurseries, Todmorden - Stansfield, Abraham. (1865)

A priced (and partially descriptive) Catalogue of Stove, Greenhouse and Hardy Exotic, and British Ferns : offered for sale by Abm. Stansfield & Sons ... Vale Nurseries, Todmorden - Stansfield, Abraham. (1869)

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

Primitiae florae costaricensis - Durand, Th. (Théophile), 1855 -1912 (Jardin botanique de l'état, 1891)

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)

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, 1885)

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Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1939)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1987)

Proceedings of the California Academy of Sciences - California Academy of Sciences (California Academy of Sciences, 1888)

Proceedings of the California Academy of Sciences - California Academy of Sciences (California Academy of Sciences, 1889)

Proceedings of the California Academy of Sciences - California Academy of Sciences (California Academy of Sciences, 1893)

Proceedings of the California Academy of Sciences, 4th series - California Academy of Sciences (California Academy of Sciences, 1911)

Proceedings of the California Academy of Sciences, 4th series - California Academy of Sciences (California Academy of Sciences, 1907)

Proceedings of the California Academy of Sciences, 4th series - California Academy of Sciences (California Academy of Sciences, 1929)

Proceedings of the California Academy of Sciences, 4th series - California Academy of Sciences (California Academy of Sciences, 1931)

Proceedings of the California Academy of Sciences, 4th series - California Academy of Sciences (California Academy of Sciences, 1968)

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Prodrome d'histoire naturelle du département du Var. 1ère ptie (Imprimerie de P. Garcin, 1853)

Prodrome de la flore corse : comprenant les résultats botaniques de six voyages exécutés en Corse sous les auspices de M. Emile Burnat - Briquet, John, 1870 -1931 (Georg, 1910)

Prodromus florae Hispanicae :seu Synopsis methodica omnium plantarum in Hispania, sponte nascentium vel frequentius cultarum quae innotuerunt - Willkomm, Moritz, 1821 -1895 (E. Schweizerbart, 1861)

Prodromus florae hispanicae, seu synopsis methodica omnium plantarum in Hispania - Willkomm, Moritz, 1821 -1895 (E. Schweizerbart, 1861)

Prodromus florae Hispanicae :seu Synopsis methodica omnium plantarum in Hispania, sponte nascentium vel frequentius cultarum quae innotuerunt - Willkomm, Moritz, 1821 -1895 (E. Schweizerbart, 1880)

Prodromus florae hispanicae, seu synopsis methodica omnium plantarum in Hispania - Willkomm, Moritz, 1821 -1895 (E. Schweizerbart, 1880)

Prodromus florae Nepalensis : sive Enumeratio vegetabilium quae in itinere per Nepaliam proprie dictam et regiones conterminas, ann. 1802-1803. Detexit atque legit d. d. Franciscus Hamilton, (olim Buchanan) Accedunt plantae a. d. Wallich nuperius missae - Don, David, 1799 -1841 (J. Gale, 1825)

Prodromus florae Norfolkicae, sive, Catalogus stirpium quae in Insula Norfolk annis 1804 et 1805 a Ferdinando Bauer collectae et depictae nunc in Museo Caesareo Palatino Rerum Naturalium Vindobonae servantur - Endlicher, Stephan, 1804 -1849 (Apud Fridericum Beck, 1833)

Prodromus florae Novae-Hollandiae et Insulae van-Diemen : exhibens characteres plantarum - Brown, Robert, 1773 -1858 (Veneunt a reductione Isidis, 1821)

Prodromus florae Novae Hollandiae et Insulae Van-Diemen : exhibens characteres plantarum - Brown, Robert, 1773 -1858 (Sumtibus L. Schrag, 1827)

Prodromus florae Novae Hollandiae et Insulae Van-Diemen, exhibens characteres plantarum - Brown, Robert, 1773 -1858 (Typis R Taylor, veneunt apud J. Johnson, 1810)

Prodromus floræ Novæ Hollandiæ et Insulæ Van-Diemen : exhibens characteres plantarum quas annis 1802-1805 - Brown, Robert, 1773 -1858 (typis R. Taylor et socii, 1810)

Prodromus florae veronensis - Goiran, A. (Agostino), 1835 -1909 (1882)

Prof. dr. Thom©♭'s Flora von Deutschland, ©sterreich und der Schweiz in wort und bild f©ơr schule und haus - Thomé, Otto W. (Otto Wilhelm), 1840 -1925 (F. E. K©œhler, 1886)

Prof. dr. Thomé's Flora von Deutschland, Österreich und der Schweiz, in wort und bild, für schule und haus ... mit ... - Migula, W. (Walter), 1863 -1938 (1886)

Prof. dr. Thomé's Flora von Deutschland, Österreich und der Schweiz, in wort und bild, für schule und haus ... mit ... - Migula, W. (Walter), 1863 -1938 (1903)

Prof. dr. Thomé's Flora von Deutschland, Österreich und der Schweiz, in wort und bild, für schule und haus ... mit ... - Migula, W. (Walter), 1863 -1938 (1889)

Pronunciation of plant names - Garden Club of America. (Reproduced and printed by National Process Company], 1922)

A provisional host-index of the fungi of the United States - Farlow, W. G. (William Gilson), 1844 -1919 (1888)

A provisional host-index of the fungi of the United States - Farlow, W. G. (William Gilson), 1844 -1919 (1891)

Pteridologia : a publication of the American Fern Society - American Fern Society. (The Society, 1989)