Revista chilena de historia natural - Museo de Historia Natural de Valparaíso (Valparaíso, Chile) (Litografia e Impr. Industrial (F. Peters), 1910)

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, 1867)

Revista del Museo de La Plata - Universidad Nacional de La Plata. (Talleres del Museo de La Plata, 1908)

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

Revue de botanique; bulletin mensuel de la Société Française de Botanique - Société française de botanique. (Au secrétariat de la Société, 1888)

Revue de botanique systématique et de géographie botanique - Rouy, Georges, 1851 -1924 (E. Deyrolle, 1903)

Revue des sciences naturelles (1872)

Revue générale de botanique (Libraire générale de l'enseignement, 1904)

Revue horticole (Librairie agricole de la maison rustique, 1855)

Revue horticole (Librairie agricole de la maison rustique, 1861)

Revue horticole (Librairie agricole de la maison rustique, 1864)

Revue horticole (Librairie agricole de la maison rustique, 1884)

Revue horticole (Librairie agricole de la maison rustique, 1894)

Revue horticole (Librairie agricole de la maison rustique, 1896)

Revue horticole (Librairie agricole de la maison rustique, 1902)

Revue horticole (Librairie agricole de la maison rustique, 1913)

La Revue scientifique du Limousin - Le Gendre, Charles. (Impr.-Librairie Ve. H. Ducourtieux, 1893)

Rheinische Flora. Beschreibung der wildwachsenden und cultivirten Pflanzen des Rheingebietes vom Bodensee bis zur Mosel und Lahn, mit besonderer Beru¨cksichtigung des Grossherzogthums Baden - Döll, Johann Christof, 1808 -1885 (H.L. Brnner, 1843)

Rheinisches Jahrbuch für Gartenkunde und Botanik (E. Strauss, 1883)

Rhododendrons, azaleas, specimen conifers, rare plants, 1936 : Carolina mountain flowers and hardy native American plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Harlan P. Kelsey, Inc, 1936)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1899)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1902)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1904)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1907)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1909)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1917)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1921)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1922)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1923)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1926)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1928)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1929)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1930)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1935)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1936)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1939)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1940)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1942)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1947)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1948)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1953)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1949)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1951)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1952)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1955)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1956)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1961)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1966)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1971)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1976)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1975)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1978)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1981)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1986)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1991)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1995)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1996)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 2003)

ri ben zhi wu ming hui - Honda, Masaji 本田正次 1897 -1984 (san sheng tang)

Rocky Mountain front grizzly bear monitoring and investigation - Aune, Keith, 1954 - (Montana Dept. of Fish, Wildlife and Parks, 1982)

Rocky Mountain wild flower studies; an account of the ways of some plants that live in the Rocky Mountain region - Longyear, Burton Orange, 1868 - (Merchants Publishing Co, 1909)

Rodriguésia: Revista do Jardim Botânico do Rio de Janeiro (Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, 1942)

Roosevelt wild life bulletin ... of the Roosevelt Life Forest Experiment Station of the New York College of Forestry at Syracuse University - New York State College of Forestry at Syracuse University. Roosevelt Wild Life Forest Experiment Station. (The University, 1940)

Rural life in Litchfield County - Litchfield County University Club. (Pub. under the auspices of the Litchfield County university club, 1917)

Rural New Yorker - Moore, D. D. T. (Rural Pub. Co. [etc.], 1885)

Rural New Yorker - Moore, D. D. T. (Rural Pub. Co. [etc.], 1932)

Rust, smut, mildew, & mould : an introduction to the study of microscopic fungi - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (R. Hardwicke, 1865)

Rust, smut, mildew & mould. An introduction to the study of microscopic fungi - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (W. H. Allen, 1902)

Rust, smut, mildew & mould : An introduction to the study of microscopic fungi - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (Hardwicke and Bogue, 1878)

Rust, smut, mildew, & mould; an introduction to the study of microscopic fungi - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (Hardwicke and Bogue, 1878)

Rust, smut, mildew, & mould : an introduction to the study of microscopic fungi - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (R. Hardwicke, 1872)

Rust, smut, mildew & mould ; an introduction to the study of microscopic fungi - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (W.H. Allen, 1898)

Rust, smut, mildew & mould. An introduction to the study of microscopic fungi - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (W. H. Allen, 1886)

Samen-Verzeichnis des Staatl. Botanischen Gartens zu Dresden - Technische Universität Dresden. Botanischer Garten. (Koeniglich Botanischer Garten zu Dresden, 1940)

Sandusky flora. A catalogue of the flowering plants and ferns growing without cultivation in Erie county, Ohio, and the peninsula and islands of Ottawa County - Moseley, Edwin Lincoln, 1865 -1948 (Clapper, 1899)

Sandusky flora. A catalogue of the flowering plants and ferns growing without cultivation, in Erie County, Ohio, and the peninsula and islands of Ottawa County - Moseley, Edwin Lincoln, 1865 -1948 (Press of Clapper Printing Co, 1899)

Sandyloam garden lilies : autumn, 1950 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Sandyloam, 1950)

Sandyloam garden lilies : autumn, 1954 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Sandyloam, 1954)

Schlesiens Pflanzenwelt. Eine pflanzengeographische Schilderung der Provinz - Pax, Ferdinand, 1858 -1942 (G. Fischer, 1915)

The school fern-flora of Canada comprising descriptions of all ferns known to inhabit the Dominion, together with an account of their geographical range or prevalence in the several provinces, and special localities for the rarer species - Lawson, George, 1827 -1895 (A. & W. Mackinlay?, 1889)

A school flora : for the use of elementary botanical classes - Watts, W. Marshall (Longmans, Green, 1910)

Schriften der Königlichen Physikalisch-Ökonomischen Gesellschaft zu Königsberg - Königliche Physikalisch-Ökonomische Gesellschaft zu Königsberg. (In Commission bei Gräfe und Unzer, 1872)

Schriften der Naturforschenden Gesellschaft in Danzig - Naturforschende Gesellschaft in Danzig. (Auf Kosten der Naturforschenden Gesellschaft, 1880)

Schriften der Naturforschenden Gesellschaft in Danzig - Naturforschende Gesellschaft in Danzig. (Auf Kosten der Naturforschenden Gesellschaft, 1886)

Schriften der Physikalisch-Ökonomischen Gesellschaft zu Königsberg - Physikalisch-Ökonomische Gesellschaft zu Königsberg (In Commission bei Gräfe und Unzer, 1875)

Schriften der Physikalisch-Ökonomischen Gesellschaft zu Königsberg - Physikalisch-Ökonomische Gesellschaft zu Königsberg (In Commission bei Gräfe und Unzer, 1884)

Schriften der Physikalisch-Ökonomischen Gesellschaft zu Königsberg - Physikalisch-Ökonomische Gesellschaft zu Königsberg (In Commission bei Gräfe und Unzer, 1885)

Schriften der Physikalisch-Ökonomischen Gesellschaft zu Königsberg - Physikalisch-Ökonomische Gesellschaft zu Königsberg (In Commission bei Gräfe und Unzer, 1891)

Schriften der Physikalisch-Ökonomischen Gesellschaft zu Königsberg - Physikalisch-Ökonomische Gesellschaft zu Königsberg (In Commission bei Gräfe und Unzer, 1913)

Schriften herausgegeben von der Naturforscher-Gesellschaft bei der Universität Jurjew (Dorpat) - Universitas Jurjevensis. Naturforscher-Gesellschaft. (Druck von C. Mattiesen, 1895)

Schulflora der Provinz Schleswig-Holstein, des Fürstentums Lübeck, sowie des Gebietes der freien Städte Hamburg und Lübeck - Knuth, Paul, 1854 -1899 (O. Lenz, 1888)

Schulflora für die sterreichischen Südeten- und Alpenländer (mit Ausschluss des Küstenlandes) - Fritsch, Karl, 1864 -1934 (C. Gerold, 1900)

Schulflora von Österreich - Willkomm, Moritz, 1821 -1895 (A. Pichler's Witwe & Sohn, 1892)

Science - American Association for the Advancement of Science. ([s.n.], 1897)

Science - American Association for the Advancement of Science. ([s.n.], 1898)

Science - American Association for the Advancement of Science. ([s.n.], 1899)

Science - American Association for the Advancement of Science. ([s.n.], 1900)

Science - American Association for the Advancement of Science. ([s.n.], 1901)

Scientific news for general readers; a popular illustrated weekly journal of science (1888)

The Scientific proceedings of the Royal Dublin Society - Royal Dublin Society. (The Society, 1877)

The Scottish naturalist - Perthshire Society of Natural Science. (Cowan & Co. [etc.], 1877)

The Scottish naturalist - Perthshire Society of Natural Science. (Cowan & Co. [etc.], 1881)

The Scottish naturalist - Perthshire Society of Natural Science. (Cowan & Co. [etc.], 1883)

A season among the wildflowers - Wood, Henry. (.W. S. Sonnenschein, 1883)

A second supplement to, and summary of Stewart and Corry's flora of the North-east of Ireland - Corry, Thomas H. (Thomas Hughes), 1859 -1883 (Belfast Naturalists' Field Club, 1923)

Second systematic census of Australian plants, with chronologic, literary and geographic annotations - Mueller, Ferdinand von, 1825 -1896 (Printed for the Victorian Government by McCarron. Bird & Co, 1889)

Select ferns and lycopods: British and exotic - Williams, Benjamin Samuel, 1822 -1890 ([The author], 1868)

Select ferns and lycopods: British and exotic : comprising descriptions of nine hundred and fifty choice species and varieties, accompanied by directions for their management in the tropical, temperate, and hardy fernery - Williams, Benjamin Samuel, 1822 -1890 ([The author], 1873)

Selected western flora : Manitoba, Saskatchewan, Alberta - Hales, B. J. (Benjamin Jones), 1868 -1945 (Macmillan Company of Canada, 1919)

Selected western flora, Manitoba, Saskatchewan, Alberta - Hales, B. J. (Benjamin Jones), 1868 -1945 (the Macmillan Co. of Canada, 1915)

La Semaine horticole et revue des cultures coloniales ([s.n.], 1899)

Sensitive plant survey in the Sioux District, Custer National Forest, Carter County, Montana, and Harding County, South Dakota - Montana Natural Heritage Program. (Montana Natural Heritage Program, 1995)

Sensitive plant survey of the Tendoy Mountains, in the Beaverhead National Forest, Beaverhead County, Montana - Montana Natural Heritage Program. (Montana Natural Heritage Program, 1995)

Sensitive plant surveys, 1989 : U.S. Forest Service, Region 1, Gallatin National Forest - Montana Natural Heritage Program. (Montana Natural Heritage Program, 1989)

Sensitive plant surveys in the Bull River and adjacent drainages, U.S.D.A. Forest Service, Region 1, Kootenai National Forest, Montana - Montana Natural Heritage Program. (Montana Natural Heritage Program, 1990)

Sensitive, threatened, and endangered vascular plants of Montana - Lesica, Peter. (Montana Natural Heritage Program, Montana State Library, 1991)