Recueil de l'Institut botanique (Université de Bruxelles) - Institut botanique Léo Errera. (Henri Lamertin, 1902)

Recueil de l'Institut botanique (Université de Bruxelles) - Institut botanique Léo Errera. (Henri Lamertin, 1900)

Reflections on the phenomenon of rejuvenescence in nature, especially in the life and development of plants - Braun, Alexander, 1805 -1877 (1851)

Le Règne végétal; divisé en: Traité de botanique, Flore médicale, usuelle et industrielle, Horticulture théorique et pratique, Plantes agricoles et forestières, Histoire biographique et bibliographique de la botanique - Réveil, O. (Oscar), 1821 -1865 (L. Guérin, 1870)

Reise der o¨sterreichischen Fregatte Novara um die Erde in den Jahren 1857, 1858, 1859 unter den Befehlen des Commodore B. von Wu¨llerstorf-Urbair Erster Band: Sporenpflanzen Botanischer Theil (Kaiserlich-Kniglichen Hof- und Staatsdruckerei, in Commission bei K. Gerold, 1870)

Reise der österreichischen Fregatte Novara um die Erde in den Jahren 1857, 1858, 1859 unter den Befehlen des Commodore B. von Wüllerstorf-Urbair - Österreichische Akademie der Wissenschaften. (Kaiserlich-Königliche Hof- und Staatsdruckerei; in Commission bei K. Gerold's Sohn, 1870)

Reise in den äussersten Norden und Osten Sibiriens während der Jahre 1843 und 1844 mit Allerhöchster Genehmigung auf Veranstaltung der Kaiserlichen Akademie der Wissenschaften zu St. Petersburg ausgeführt und in Verbindung mit vielen Gelehrten - Imperatorskai︠a︡ akademīi︠a︡ nauk (Russia) (Buchdr. der K. Akademie der Wissenschaften : Zu haben bei Eggers, 1867)

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)

Rendiconti - Accademia nazionale dei Lincei. Classe di scienze fisiche, matematiche e naturali. (1920)

Rendiconti - Reale Istituto lombardo di scienze e lettere. (Tip. di G. Bernardoni, 1878)

Rendiconto delle adunanze e de' lavori dell'Accademia delle Scienze sezione della Società Reale Borbonica di Napoli - Accademia delle Scienze di Napoli (Società Reale Borbonica, 1842)

Rendiconto delle adunanze e de' lavori dell'Accademia delle Scienze sezione della Società Reale Borbonica di Napoli - Accademia delle Scienze di Napoli (Società Reale Borbonica, 1848)

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

Report - Chicago Natural History Museum. (1915)

Report and transactions - Guernsey Society of Natural Science; Local Research. (The Society, 1890-1922, 1890)

Report of the ... Australasian Association for the Advancement of Science - Australasian Association for the Advancement of Science. (The Association, 1911)

Report of the Botanist - New York (State). State Botanist. (James B. Lyon, State Printer, 1867)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1889)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1901)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1911)

Report of the Canadian Arctic Expedition 1913-18 (F. A. Acland, Printer to the King, 1913)

Report of the Commissioner for ... - Baird, Spencer Fullerton, 1823 -1887 (G.P.O, 1882)

Report of the Commissioner of Fisheries to the Secretary of Commerce and Labor for the fiscal year ended ... - United States. Bureau of Fisheries. (G.P.O, 1913)

Report of the Director to the Board of Trustees for the year ... - Chicago Natural History Museum. (The Museum, 1946)

Report of the Director to the Board of Trustees for the year ... - Chicago Natural History Museum. (The Museum, 1947)

Report of the Folkestone Natural History Society - Folkestone Natural History Society. (1957)

Report of the geological exploration of the fortieth parallel - Eaton, Daniel Cady, 1834 -1895 (G.P.O, 1871)

Report of the Geological Survey of Ohio - Geological Survey of Ohio. (Nevins & Myers, state printers, 1893)

Report of the geological survey of Ohio - Geological Survey of Ohio. (Nevins & Meyers, 1893)

Report of the Liverpool Microscopical Society - Liverpool Microscopical Society. (1887)

Report of the Michigan Academy of Science - Michigan Academy of Science. Council. (The Academy, 1900)

Report of the scientific results of the voyage of S.Y. "Scotia" during the years 1902, 1903, and 1904, under the leadership of William S. Bruce - Bruce, William S. 1867 -1921 (The Scottish oceanographical laboratory, 1907)

Report on botanical work in Minnesota for the year 1886 - Arthur, Joseph Charles, 1850 -1942 (Pioneer Press Co, 1887)

Report on the condition of the sea fisheries of the south coast of New England ... - Baird, Spencer Fullerton, 1823 -1887 (Govt. Print. Off, 1873)

Report on the condition of the sea fisheries of the south coast of New England ... - Baird, Spencer Fullerton, 1823 -1887 (Govt. Print. Off, 1871)

A report on the progress of vegetable physiology during the year 1837 - Meyen, Franz Julius Ferdinand (Taylor, 1839)

Report on the scientific results of the voyage of H.M.S. Challenger during the years 1873-76 under the command of Captain George S. Nares ... and the late Captain Frank Tourle Thomson, R.N - Thomson, C. Wyville, Sir, (Charles Wyville), 1830 -1882 (Neill, 1885)

Report on the scientific results of the voyage of H.M.S. Challenger during the years 1873-76 under the command of Captain George S. Nares ... and the late Captain Frank Tourle Thomson, R.N - Thomson, C. Wyville, Sir, (Charles Wyville), 1830 -1882 (Neill, 1888)

Report on the scientific results of the voyage of S.Y. "Scotia" during the years 1902, 1903 and 1904, under the leadership of William S. Bruce - Bruce, William S. 1867 -1921 (Scottish Oceanographical Laboratory, 1912)

Report on the zoological collections made in the Indo-Pacific Ocean during the voyage of H.M.S. 'Alert' 1881-2 - British Museum (Natural History). Department of Zoology. (Printed by order of the Trustees, 1884)

Reports and papers on botany - Grisebach, A. (August), 1814 -1879 (Printed for the Ray society, 1846)

Reports of the Princeton University Expeditions to Patagonia, 1896-1899. J. B. Hatcher in charge - Princeton University Expeditions to Patagonia 1896 -1899 (The University, 1903)

Reports of the Survey. Botanical series - Geological; Natural History Survey of Minnesota. (1892)

Representative plants; a manual for the use of students of botany in secondary schools and colleges - Pepoon, Herman Silas, 1860 - (Ginn, 1912)

Reproduction des cryptogames - Rietsch, Maximilien. (G. Baillière, 1882)

Research in photosynthesis; papers and discussions presented at the Gatlinburg conference, October 25-29, 1955, sponsored by the Committee on Photobiology of the National Academy of Sciences-National Research Council and supported by the National Science Foundation - Gaffron, H. (Interscience Publishers, 1957)

Research methods in ecology - Clements, Frederic E. (Frederic Edward), 1874 -1945 (The University publishing company, 1905)

Research methods in ecology - Clements, Frederic E. (Frederic Edward), 1874 -1945 (University Pub. Co, 1905)

Resultate der Wissenschaftlichen Erforschung des Balatonsees - Hungary. Földmm̋uvelésügyi Minisztérium. (E. Hölzel, 1897)

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.], 1898)

A revision of Bastin's College botany for the use of students of pharmacy - Bastin, Edson S. (Edson Sewell), 1843 -1897 (G. P. Engelhard & co, 1920)

Revista chilena de historia natural - Museo de Historia Natural de Valparaíso (Valparaíso, Chile) (Litografia e Impr. Industrial (F. Peters), 1911)

Revista de los Progresos de las Ciencias Exactas Fisicas y Naturales - Real Academia de Ciencias Exactas Físicas y Naturales de Madrid. (Real Academia de Ciencias Exactas, Físicas y Naturales, 1869)

Revue algologique - Muséum national d'histoire naturelle (France) (Museum national d'histoire naturelle, 1924)

Revue algologique - Muséum national d'histoire naturelle (France) (Museum national d'histoire naturelle, 1928)

Revue algologique - Muséum national d'histoire naturelle (France) (Museum national d'histoire naturelle, 1929)

Revue algologique - Muséum national d'histoire naturelle (France) (Museum national d'histoire naturelle, 1931)

Revue algologique - Muséum national d'histoire naturelle (France) (Museum national d'histoire naturelle, 1932)

Revue algologique - Muséum national d'histoire naturelle (France) (Museum national d'histoire naturelle, 1937)

Revue algologique - Muséum national d'histoire naturelle (France) (Museum national d'histoire naturelle, 1938)

Revue algologique - Muséum national d'histoire naturelle (France) (Museum national d'histoire naturelle, 1941)

Revue algologique - Muséum national d'histoire naturelle (France) (Museum national d'histoire naturelle, 1954)

Revue algologique - Muséum national d'histoire naturelle (France) (Museum national d'histoire naturelle, 1955)

Revue algologique - Muséum national d'histoire naturelle (France) (Museum national d'histoire naturelle, 1956)

Revue algologique - Muséum national d'histoire naturelle (France) (Museum national d'histoire naturelle, 1957)

Revue algologique - Muséum national d'histoire naturelle (France) (Museum national d'histoire naturelle, 1958)

Revue algologique - Muséum national d'histoire naturelle (France) (Museum national d'histoire naturelle, 1959)

Revue algologique - Muséum national d'histoire naturelle (France) (Museum national d'histoire naturelle, 1962)

Revue algologique - Muséum national d'histoire naturelle (France) (Museum national d'histoire naturelle, 1964)

Revue algologique - Muséum national d'histoire naturelle (France) (Museum national d'histoire naturelle, 1967)

Revue algologique - Muséum national d'histoire naturelle (France) (Museum national d'histoire naturelle, 1968)

Revue algologique - Muséum national d'histoire naturelle (France) (Museum national d'histoire naturelle, 1970)

Revue algologique - Muséum national d'histoire naturelle (France) (Museum national d'histoire naturelle, 1971)

Revue algologique - Muséum national d'histoire naturelle (France) (Museum national d'histoire naturelle, 1974)

Revue algologique - Muséum national d'histoire naturelle (France) (Museum national d'histoire naturelle, 1976)

Revue algologique - Muséum national d'histoire naturelle (France) (Museum national d'histoire naturelle, 1977)

Revue algologique - Muséum national d'histoire naturelle (France) (Museum national d'histoire naturelle, 1979)

Revue algologique - Muséum national d'histoire naturelle (France) (Museum national d'histoire naturelle, 1963)

Revue algologique - Muséum national d'histoire naturelle (France) (Museum national d'histoire naturelle, 1925)

Revue biologique du nord de la France (Le Bigot, 1892)