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)

Reisen in Amur-Land und auf der Insel Sachalin : im Auftrage der Kaiserlich-Russischen Geographischen Gesellschaft ausgefuehrt - Schmidt, Friedrich, 1832 -1908 (Commissionaires de l'Académie impériale des sciences, 1868)

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

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

Report - British Columbia Provincial Museum. (Printed by W.H. Cullin, 1948)

Report of the botanical exploration of southwestern Virginia during the season of 1892 - Small, John Kunkel, 1869 -1938 (1893)

Report of the Botanist - Peck, Charles H. (Charles Horton), 1833 -1917 (University of the State of New York, Office of the Regents, 1868)

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

Report of the Botanist - Peck, Charles H. (Charles Horton), 1833 -1917 (University of the State of New York, Office of the Regents, 1878)

Report of the flora of Westchester County - Bolton, Robert, 1814 -1877 (Roper & Burdge, 1880)

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

Report of the Michigan Academy of Science - Michigan Academy of Science. Council. (The Academy, 1905)

Report of the Michigan Academy of Science - Michigan Academy of Science. Council. (The Academy, 1904)

Report of the Michigan Academy of Science - Michigan Academy of Science. Council. (The Academy, 1912)

Report of the Michigan Academy of Science - Michigan Academy of Science. Council. (The Academy, 1914)

Report of the Missouri State Horticultural Society for the year - Missouri State Horticultural Society. (The Society, 1886)

Report of the Museum of Natural History, Springfield, Massachusetts - Museum of Natural History (Springfield, Mass.) (The Museum, 1897)

Report of the State Botanist - Peck, Charles H. (Charles Horton), 1833 -1917 (University of the State of New York, 1897)

Report of the State Botanist - Peck, Charles H. (Charles Horton), 1833 -1917 (University of the State of New York, 1904)

Report of the State Botanist - Peck, Charles H. (Charles Horton), 1833 -1917 (University of the State of New York, 1909)

Report of the State Botanist - Peck, Charles H. (Charles Horton), 1833 -1917 (University of the State of New York, 1916)

Report of the State Entomologist to the Regents of the University of the State of New York - University of the State of New York. (University of the State of New York], 1885)

Report on the botany of Madison, Lincoln, Garrard, Washington, and Marion Counties, Kentucky - Kentucky. State Geologist. (Yeoman Press, 1882)

Report on the indigenous medical botany of Massachusetts - Williams, Stephen W. (Stephen West), 1790 -1855 (1849)

Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean - Baird, Spencer Fullerton, 1823 -1887 (A.O.P. Nicholson, Printer [etc.], 1856)

Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean - Baird, Spencer Fullerton, 1823 -1887 (A.O.P. Nicholson, Printer [etc.], 1854)

Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean - Baird, Spencer Fullerton, 1823 -1887 (A.O.P. Nicholson, Printer [etc.], 1859)

Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean - Baird, Spencer Fullerton, 1823 -1887 (A.O.P. Nicholson, Printer [etc.], 1860)

Reports of the Director ... - Dominion Experimental Farms; Stations (Canada) (Experimental Farms, 1902)

Reports of the Director ... - Dominion Experimental Farms; Stations (Canada) (Experimental Farms, 1913)

Reports of the Director ... - Dominion Experimental Farms; Stations (Canada) (Experimental Farms, 1914)

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

Resources of the southern fields and forests, medical, economical, and agricultural - Porcher, Francis Peyre, 1825 -1895 (Walker, Evans & Cogswell, printers, 1869)

Response of the nervous system to ionizing radiation - Haley, Thomas J. (Academic Press, 1962)

Retail catalogue of American plants, shrubs and trees - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wm. F. Bassett & Son, 1898)

Retail catalogue of ground cover plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hugh B. Barclay, 1930)

Retail price list, 1934 (trade 331/3%) - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Gillett's Fern and Flower Farm, 1934)

Retail price list of California bulbs - Purdy, Carl (Firm) (Carl Purdy, 1897)

Revised checklist of New York State plants - Mitchell, Richard S., 1938 - (University of the State of New York, State Education Dept, 1997)

Revised land and resource management plan, Ouachita National Forest, Arkansas and Oklahoma - United States. Forest Service. Southern Region. (U.S. Dept. of Agriculture, Forest Service, Southern Region, 2005)

Revue générale de botanique (Libraire générale de l'enseignement, 1913)

Revue générale de botanique (Libraire générale de l'enseignement, 1919)

Revue horticole (Librairie agricole de la maison rustique, 1892)

Revue horticole (Librairie agricole de la maison rustique, 1893)

Revue suisse de zoologie - Muséum d'histoire naturelle de Genève. (Kundig [etc.], 1945)

The rhododendron and "American plants." : A treatise on the culture, propagation, and species of the rhododendron; : with cultural notes upon other plants which thrive under like treatment, and descriptions of species and varieties; : with a chapter upon herbaceous plants requiring similar culture - Rand, Edward Sprague, Jr., 1834 -1897 (Hurd and Houghton, 1876)

The rhododendron and "American plants". A treatise on the culture, propagation, and species of the rhododendron; with cultural notes upon other plants which thrive under like treatment, and descriptions of species and varieties; with a chapter upon herbaceous plants requiring similar culture - Fitch, W. H. (Walter Hood), 1817 -1892 (Little, Brown, and company, 1871)

Rhododendrons : fall 1926 - spring 1927 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Morris Nursery Company, 1926)

Rhododendrons : fall, 1928 spring, 1929 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Morris Nursery Company, 1928)

Rhododendrons : fall, 1929 spring, 1930 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Morris Nursery Company, 1929)

Rhododendrons for 1926 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Morris Nursery Company, 1926)

Rhododendrons for spring 1928 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Morris Nursery Company, 1928)

Rhododendrons, kalmia and other plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Morris Nursery Company, 1931)

Rhododendrons, kalmia and other plants : fall, 1930-spring, 1931 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Morris Nursery Company, 1930)

Rhododendrons : spring 1929 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Morris Nursery Company, 1929)

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

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1908)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1910)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1911)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1920)

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

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

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1927)

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

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1931)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1932)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1933)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1934)

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

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1937)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1938)

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

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1941)

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

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1943)