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The Proceedings of the Iowa Academy of Science - Iowa Academy of Science (The Academy, 1901)

Proceedings of the Linnean Society of London - Linnean Society of London. (Published for the Linnean Society of London by Academic Press [etc.], 1906)

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Proceedings of the Linnean Society of New South Wales - Linnean Society of New South Wales. (Linnean Society of New South Wales, 1889)

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Proceedings of the Manchester Literary and Philosophical Society - Manchester Literary; Philosophical Society. (The Society, 1880)

Proceedings of the Royal Horticultural Society London (Royal Horticultural Society, 1859)

Proceedings of the Royal Horticultural Society London (Royal Horticultural Society, 1862)

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Proceedings of the Royal Society of London - Royal Society (Great Britain) (The Society, 1878)

Proceedings of the Zoological Society of London - Zoological Society of London. (Academic Press, [etc.], 1834)

Proceedings of the Zoological Society of London - Zoological Society of London. (Academic Press, [etc.], 1867)

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

Prodromus plantarum Capensium :quas in promontorio Bonæ Spei Africes, annis 1772-1775 - Thunberg, Carl Peter, 1743 -1828 (J. Edman, 1794)

Prodromus plantarum indiae occidentalis :hucusque cognitarum tam in oris Americae Meridionalis, quam in insulis Antillicis sponte crescentium, aut ibi diuturne hospitantium, nova genera et species hactenus ignotas complectens - Hamilton, William, 1788 -1856 (Treuttel et Würtz, 1825)

Prodromus systematis naturalis regni vegetabilis, sive, Enumeratio contracta ordinum generum specierumque plantarum huc usque cognitarium, juxta methodi naturalis, normas digesta - Candolle, Augustin Pyramus de, 1778 -1841 (Sumptibus Sociorum Treuttel et Würtz, 1844)

Prodromus systematis naturalis regni vegetabilis, sive, Enumeratio contracta ordinum generum specierumque plantarum huc usque cognitarium, juxta methodi naturalis, normas digesta - Candolle, Augustin Pyramus de, 1778 -1841 (Sumptibus Sociorum Treuttel et Würtz, 1846)

Prodromus systematis naturalis regni vegetabilis, sive, Enumeratio contracta ordinum generum specierumque plantarum huc usque cognitarium, juxta methodi naturalis, normas digesta - Candolle, Augustin Pyramus de, 1778 -1841 (Sumptibus Sociorum Treuttel et Würtz, 1873)

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

A provisional list of the indigenous and naturalized flowering plants of Jamaica - Fawcett, William, 1851 -1926 (Aston W. Gardner & Co, 1893)

Publication. Field Columbian Museum Botanical series - Field Columbian Museum. (Field Columbian Museum, 1896)

Publication. Field Columbian Museum Botanical series - Field Columbian Museum. (Field Columbian Museum, 1898)

Publication. Field Columbian Museum Botanical series - Field Columbian Museum. (Field Columbian Museum, 1900)

Publication. Field Columbian Museum Botanical series - Field Columbian Museum. (Field Columbian Museum, 1909)

Publication. Field Museum of Natural History Botanical series - Field Museum of Natural History. (Field Museum of Natural History, 1930)

Publication. Field Museum of Natural History Botanical series - Field Museum of Natural History. (Field Museum of Natural History, 1940)

Publication. Field Museum of Natural History Botanical series - Field Museum of Natural History. (Field Museum of Natural History, 1941)

Publication. Field Museum of Natural History Botanical series - Field Museum of Natural History. (Field Museum of Natural History, 1931)

Publication. Field Museum of Natural History Botanical series - Field Museum of Natural History. (Field Museum of Natural History, 1936)

Publication. Field Museum of Natural History Botanical series - Field Museum of Natural History. (Field Museum of Natural History, 1959)

Publication. Field Museum of Natural History Botanical series - Field Museum of Natural History. (Field Museum of Natural History, 1938)

Quarterly Journal of Science, Literature and the Arts - Royal Institution of Great Britain. (1828)

Quarterly summary of re-identifications, April, May, June 1962 : Summary No. 9 - United States. Bureau of Plant Industry, (New Crops Research Branch, Plant Industry Station, 1960)

Rariora musei Besleriani quae olim Basilius et Michael Rupertus Besleri collegerunt : aeneisque tabulis ad vivum incisa evulgarunt - Besler, Basilius, 1561 -1629 (s.n. ], 1696)

Rariora Mvsei Besleriani quae olim Basilivs et Michael Rvpertus Besleri collegerunt, aeneisqve tabvlis ad vivvm incisa evvlgarunt : nunc commentariolo illustrata a Johanne Henrico Lochnero, vt virtvti toy makaritoy exstaret monvmentvm : denvo lvci pvblicae commisit et lavdationem ejvs fvnebrem adjecit maestissimus parens Michael Fridericvs Lochnervs, archiater Caes. Acad. Leopold. Carol. nat. cvr. ephem. director - Besler, Basilius, 1561 -1629 (s.n.], 1716)

Répertoire des plantes utiles et des plantes vénéneuses du globe contenant la synonymie latine et française des plantes, leurs noms vulgaires français et l'indication de leurs usages ... précédé d'un traité indispensable aux personnes qui veulent herboriser, et composer des herbiers - Duchesne, E. A. (Edouard Adolphe), 1804 -1869 (J. Renouard, 1836)

Records of the Botanical Survey of India - Botanical Survey of India. (Office of Supt. of Govt. Print., India, 1953)

Recueil des travaux botaniques néerlandais - Koninklijke Nederlandse Botanische Vereniging. (Société botanique néerlandaise, 1904)

Reise durch einige der mittlern und su¨dlichen Vereinigten Nordamerikanischen Staaten, nach Ost-Florida und den Bahama Inseln unternommen in den jahren 1783 und 1784 - Schöpf, Johann David, 1752 -1800 (J.U. & C.G. Lloyd, 1911)

Reise in Brasilien : auf Befehl Sr. Majestät Maximilian Joseph I., Königs von Baiern, in den Jahren 1817 bis 1820 gemacht und beschrieben - Spix, Johann Baptist von, 1781 -1826 (M. Lindauer, 1823)

Reise in Brasilien : auf Befehl Sr. Majestät Maximilian Joseph I., Königs von Baiern, in den Jahren 1817 bis 1820 gemacht und beschrieben - Spix, Johann Baptist von, 1781 -1826 (M. Lindauer, 1828)

Reise nach Brasilien in den Jahren 1815 bis 1817 - Wied, Maximilian, Prinz von, 1782 -1867 (Gedruckt und verlegt bey H.L. Brönner, 1820)

Reise nach den Inseln Teneriffa, Trinidad, St. Thomas, St. Crux und Porto-Rico; auf Befehl der franzo¨sischen Regierung, vom 30. Sept. 1796 bis zum 7. Juni 1789, unter der Leitung des Capitain Baudin unternommen - Sonnini, C. S. (Charles Sigisbert), 1751 -1812 (H. Büschler, 1811)

Reisen in Britisch-Guiana in den Jahren 1840-1844 : nebst einer Fauna und Flora Guiana's nach Vorlagen von Johannes Müller, Ehrenberg, Erichson, Klotzsch, Troschel, Cabanis und Andern - Ehrenberg, Christian Gottfried, 1795 -1876 (J. J. Weber, 1847)

Reisen in Britisch-Guiana in den Jahren 1840-1844 : nebst einer Fauna und Flora Guiana's nach Vorlagen von Johannes Müller, Ehrenberg, Erichson, Klotzsch, Troschel, Cabanis und Andern - Ehrenberg, Christian Gottfried, 1795 -1876 (J. J. Weber, 1848)

Répertoire des noms génériques mentionnés dans l'Index kewensis et ses quinze premiers suppléments = Guide to the generic names appearing in the Index Kewensis and its fifteen supplements = Repertorio de los nombres genericos enumerados en el Index Kewensis y sus quince suplementos = Repertorium der im Index Kewensis und seinen fuenfzehn ersten Supplementen erwaehnten Gattungsnamen - Rouleau, Ernest 1916 -1991 (Châtelain, 1981)

Repertorio fisico-natural de la isla de Cuba - Poey, Felipe, 1799 -1891 (Impr. del gobierno y capitanía general por S.M. [etc, 1866)

Repertorium annuum literaturae botanicae periodicae - Bemmelen, J. A. van. (Erven Loosjes, 1873)

Repertorium botanices systematicae - Walpers, Wilhelm Gerhard, 1816 -1853 (Sumtibus Friderici Hofmeister, 1844)

Repertorium botanices systematicae - Walpers, Wilhelm Gerhard, 1816 -1853 (Sumtibus Friderici Hofmeister, 1846)

Repertorium commentationum a societatibus litterariis editarum - Reuss, Jeremias David, 1750 -1837 (apud Henricum Dieterich, 1802)

Repertorium specierum novarum regni vegetabilis Beihefte (Verlag des Repertoriums, 1919)

Repertorium specierum novarum regni vegetabilis (Selbstverlag des Herausgebers, 1908)

Repertorium specierum novarum regni vegetabilis (Selbstverlag des Herausgebers, 1919)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1844)

Report on the United States and Mexican boundary survey :made under the direction of the secretary of the Interior - Emory, William H. 1811 -1887 (C. Wendell, printer, 1859)

Report (to accompany bill S. no. 241) - Linn, Lewis Fields, 1795 -1843 (Blair & Rives, printers, 1838)

Report: <to accompany bill S. no. 241> - Linn, Lewis Fields, 1795 -1843 (Blair & Rives, printers, 1838)

Report upon United States Geographical surveys west of the one hundredth meridian - Geographical Surveys West of the 100th Meridian (U.S.) (G.P.O, 1878)

Reports of the Princeton University Expeditions to Patagonia, 1896-1899. J. B. Hatcher in charge - Princeton University Expeditions to Patagonia 1896 -1899 (The University, 1914)

Resources of the southern fields and forests, medical, economical, and agricultural : being also a medical botany of the Confederate States; with practical information on the useful properties of the trees, plants and shrubs - Porcher, Francis Peyre, 1825 -1895 (Steam-power Press of Evans & Cogswell, 1863)

Resources of the southern fields and forests, medical, economical, and agricultural being also a medical botany of the Confederate States : with practical information on the useful properties of the trees, plants and shrubs - Porcher, Francis Peyre, 1825 -1895 (Steam-power Press of Evans & Cogswell, 1863)

A review of the modern state of botany, with a particular reference to the natural systems of Linnaeus and Jussieu - Smith, James Edward, 1759 -1828 (Longman, Rees, Orme, Brown, Green, and Longman, 1832)

A review of the references to the Hortus malabaricus of Henry Van Rheede Van Draakenstein [sic] - Reede tot Drakestein, Hendrik van, 1637 -1691 (Printed at the Cambrian-Office, by Murray and Rees, 1839)

Revisio generum plantarum vascularium omnium atque cellularium multarum secundum leges nomenclaturae internationales cum enumeratione plantarum exoticarum in itinere mundi collectarum, mit erläuterungen - Kuntze, Otto, 1843 -1907 (A. Felix [etc., etc.], 1891)

Revisio generum plantarum:vascularium omnium atque cellularium multarum secundum leges nomenclaturae internationales cum enumeratione plantarum exoticarum in itinere mundi collectarum ... - Kuntze, Otto, 1843 -1907 (A. Felix [etc.], 1891)

Revisio generum plantarum:vascularium omnium atque cellularium multarum secundum leges nomenclaturae internationales cum enumeratione plantarum exoticarum in itinere mundi collectarum ... - Kuntze, Otto, 1843 -1907 (A. Felix [etc.], 1893)

Revisio generum plantarum:vascularium omnium atque cellularium multarum secundum leges nomenclaturae internationales cum enumeratione plantarum exoticarum in itinere mundi collectarum ... - Kuntze, Otto, 1843 -1907 (A. Felix [etc.], 1898)

Revision de plantas vasculares Filipinas :memoria elevada al Escmo. Sr. Ministro de Ultramar - Vidal y Soler, Sebastián, 1842 -1889 (Estab. tipo-litográfico de M. Perze, 1886)

Revista Brasileira (1857)

Revista chilena de historia natural - Museo de Historia Natural de Valparaíso (Valparaíso, Chile) (Litografia e Impr. Industrial (F. Peters), 1921)

Revista de la Facultad de Letras y Ciencias - Universidad de La Habana. Facultad de Letras y Ciencias. (Universidad de La Habana, 1905)

Revue horticole (Librairie agricole de la maison rustique, 1844)