Remarks on the geographical distribution of British plants : chiefly in connection with latitude, elevation, and climate - Watson, Hewett Cottrell, 1804 -1881 (Printed for Longman, Rees, Orme, Brown, Green, and Longman, 1835)

Rendiconti - Reale Accademia dei Lincei (l'Accademia, 1887)

Rendiconti - Accademia nazionale dei Lincei. Classe di scienze fisiche, matematiche e naturali. (1913)

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, 1849)

Rennie's 1902 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wm. Rennie Co, 1902)

Répartition des plantes rares ou localisées de Sologne : atlas préliminaire, 1978-1985 - Guillot, Gérard (1986)

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)

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

Repertorium botanices systematicae - Walpers, Wilhelm Gerhard, 1816 -1853 (Sumtibus Friderici Hofmeister, 1842)

Repertorium botanices systematicae - Walpers, Wilhelm Gerhard, 1816 -1853 (Sumtibus Friderici Hofmeister, 1843)

Repertorium botanices systematicae - Walpers, Wilhelm Gerhard, 1816 -1853 (Sumtibus Friderici Hofmeister, 1845)

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

Repertorium florae Ligusticae - De Notaris, Giuseppe, 1805 -1877 (Ex Regio Typographeo, 1844)

Report - British Columbia Provincial Museum. (1916)

Report / Botanical Society and Exchange Club of the British Isles - Botanical Society; Exchange Club of the British Isles. (1920)

Report for the year - British Columbia Provincial Museum - British Columbia Provincial Museum. (Printed by A. Sutton [etc.], for the Queen, 1916)

Report / Haileybury Natural Science Society - Haileybury Natural Science Society. (1873)

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

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, 1901)

Report of the Provincial Museum of Natural History - British Columbia Provincial Museum. (Provincial Museum, King's Printer for British Columbia, 1912)

Report on the agriculture of Massachusetts - Massachusetts. Agricultural Survey. (Dutton and Wentworth, 1841)

Report on the geology, mineralogy, botany, and zoology of Massachusetts : made and published by order of the government of that state : in four parts: Part I. Economical geology. Part II. T opographical geology. Part III. Scientific geology. Part IV. Catalogues of animals and plants : with a descriptive list of the specimens of rocks and minerals collected for the government : illustrated by numerous wood cuts and an atlas of plates - Massachusetts. Geological Survey. (Press of J.S. and C. Adams, 1833)

Report on the geology, mineralogy, botany, and zoology of Massachusetts - Massachusetts. Geological Survey. (Press of J.S. and C. Adams, 1833)

Report on the herbaceous flowering plants of Massachusetts, arranged according to the natural orders of Lindley, and illustrated chiefly by popular descriptions of their character, properties, and uses - Dewey, Chester, 1784 -1867 (Folsom, Wells, and Thurston, Printers to the University, 1840)

Reports and transactions - Cardiff Naturalists' Society. (1893)

Reports of the Director ... - Dominion Experimental Farms; Stations (Canada) (Experimental Farms, 1901)

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

Reports of the Director ... - Dominion Experimental Farms; Stations (Canada) (Experimental Farms, 1906)

Reports of the Director ... - Dominion Experimental Farms; Stations (Canada) (Experimental Farms, 1887)

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)

Reports on the herbaceous plants and on the quadrupeds of Massachusetts : published agreeably to an order of the Legislature by the Commissioners on the Zoological and Botanical Survey of the State - Massachusetts. Zoological; Botanical Survey. (Folsom, Wells, and Thurston, 1840)

Reputation garden guide : flower seeds, garden seeds, garden bulbs, grass seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Duluth Floral Co, 1930)

Resa genom Umeå Lappmarker i Vesterbottens län : förrättad år 1832 - Zetterstedt, Johan Wilhelm, 1785 -1874 (N.M. Lindh, 1833)

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

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

Retail list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.F. Weaver Nurseries and Greenhouses, 1933)

Retail list of peonies, phlox and perennials - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Richards Gardens, 1939)

Retail list : shrubs, trees, vines, perennials, 1937-1938 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Tuttle Bros. Nurseries, 1937)

Retail price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (H.A. Albyn Nursery, 1927)

Retail price list, fall 1932 spring 1933 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Mecklenburg Nurseries, Inc, 1932)

Retail price list of bulbs, plants from Giese's Bulb and Flower Garden : fall 1934, spring 1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (O.L. Giese, 1934)

Retail price list of bulbs, plants from Giese's Bulb and Flower Garden : fall 1935, spring 1936 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (O.L. Giese, 1935)

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

Retail price list of California bulbs - Purdy, Carl (Firm) (Carl Purdy, 1919)

Retail price list of California bulbs - Purdy, Carl (Firm) (Carl Purdy, 1921)

Retail price list [of] fruit, shade and ornamental trees, vines and shrubs : fall, 1924-spring, 1925 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Albany Nurseries, 1924)

Retail price list of perennials, evergreens, ornamental shrubs and roses - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (George Martin Nurseries, 1928)

Retail price list of the Reading Nursery : ornamental, deciduous, shade, and evergreen trees and shrubs, conifers, and hardy herbaceous plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Reading Nursery, 1888)

Retail price list of Titus Nursery Co. : 1929 fall & spring 1930 - Titus Nursery Company. (Titus Nursery Co, 1929)

Retail price list of Titus Nursery Co. : 1930 fall & spring 1931 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Titus Nursery Co, 1930)

Retail price list of Titus Nursery Company (Waynesboro Nurseries) - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Titus Nursery Company, 1928)

Retail price list of Titus Nursery Company (Waynesboro Nurseries) - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Titus Nursery Company, 1927)

Retail price list, spring 1937 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Holland-American Seed Company, 1937)

Retail price list, spring 1939 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Holland-American Seed Co, 1939)

Retail season 1921-1922 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wayside Gardens, 1921)

Retail seed catalogue - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Sioux City Nursery and Seed Company, 1897)

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

Revised price list No. 32 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J.B. Pilkington, 1930)

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, 1864)

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)

Revue de botanique; bulletin mensuel de la Société Française de Botanique - Société française de botanique. (Au secrétariat de la Société, 1887)

Revue de botanique; bulletin mensuel de la Société Française de Botanique - Société française de botanique. (Au secrétariat de la Société, 1891)

Revue de botanique; bulletin mensuel de la Société Française de Botanique - Société française de botanique. (Au secrétariat de la Société, 1893)

Revue de la flore des environs de Spa - Lejeune, Alexandre Louis Simon, 1779 -1858 (Duvivier, 1824)

Revue de viticulture : organe de l'agriculture des régions viticoles - Ravaz, L. (Louis) (Bureaux de la "Revue de Viticulture", 1898)

Revue des sciences naturelles (1883)

Revue générale de botanique (Libraire générale de l'enseignement, 1894)

Revue générale de botanique (Libraire générale de l'enseignement, 1900)

Revue générale de botanique (Libraire générale de l'enseignement, 1909)

Revue générale de botanique (Libraire générale de l'enseignement, 1914)

Revue générale de botanique (Libraire générale de l'enseignement, 1918)

Revue horticole (Librairie agricole de la maison rustique, 1843)

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

Revue horticole (Librairie agricole de la maison rustique, 1867)

Revue horticole (Librairie agricole de la maison rustique, 1877)

Revue horticole (Librairie agricole de la maison rustique, 1891)

Revue horticole (Librairie agricole de la maison rustique, 1898)

Revue horticole (Librairie agricole de la maison rustique, 1920)

Revue mycologique (Bureaux de la rédaction, 1894)

Revue scientifique du Bourbonnais et du centre de la France - Olivier, Ernest, 1844 -1914 (Impr. É. Auclaire, 1891)

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

La Revue scientifique du Limousin - Le Gendre, Charles. (Impr.-Librairie Ve. H. Ducourtieux, 1897)

La Revue scientifique du Limousin - Le Gendre, Charles. (Impr.-Librairie Ve. H. Ducourtieux, 1909)

Revue suisse de zoologie - Muséum d'histoire naturelle de Genève. (Kundig [etc.], 1999)

R.H. Shumway's 1915 seed catalogue - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R.H. Shumway, 1915)

R.H. Shumway's 1916 seed catalogue - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R.H. Shumway, 1916)

R.H. Shumway's 1921 seed catalog - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R.H. Shumway, 1921)

R.H. Shumway's 1934 catalog, the pioneer American seedsman special offer - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R.H. Shumway, 1934)

R.H. Shumway's 1935 catalog, the pioneer American seedsman special offer - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R.H. Shumway, 1935)

R.H. Shumway's 1936 catalog, the pioneer American seedsman special offer - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R.H. Shumway, 1936)

R.H. Shumway's 1937 catalog, the pioneer American seedsman special offer - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R.H. Shumway, 1937)

R.H. Shumway's 1938 catalog, the pioneer American seedsman - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R.H. Shumway, 1938)

R.H. Shumway's illustrated garden guide : 1904 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R.H. Shumway, 1904)

R.H. Shumway’s illustrated garden guide : 1905 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R.H. Shumway, 1905)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1903)

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

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1916)

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

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

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

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

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1950)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1960)

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

Ribsam's farm-garden, lawn seeds and supplies - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Martin C. Ribsam & Sons Co, 1938)

Ribsam's seed catalog - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Martin C. Ribsam & Sons Company, 1941)

Ribsam's seed manual - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Martin C. Ribsam & Sons Co, 1934)

Ribsam's seed manual : 1868-1931, 63rd year - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Martin C. Ribsam & Sons Co, 1931)

Ribsam's seed manual : 1868-1932, 64th year - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Martin C. Ribsam & Sons Co, 1932)

Ribsam's seeds, 1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Martin C. Ribsam & Sons Co, 1935)

Richards Gardens, America's largest growers of fine untransplanted perennials, offers 1941's outstanding values to make your garden dollar buy more : Old Homestead brand perennial seedlings, hardy phlox - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Richards Gardens, 1941)

Richards' Gardens at the end of West Mountain Avenue - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Richards' Gardens, 1942)

Richards Gardens offering 1942's greatest values in field-grown , untransplanted perennial plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Richards Gardens, 1942)

Richardson & Gould's seed catalogue. : American Agriculturist Building, no. 245 Broadway, Post Office address, P.O. Box 5134, New York - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Perris & Browne, printers, 164 Fulton Street, 1872)

Richardson's garden book, 1935 : everything for the garden - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E. Miller Richardson & Co, 1935)

Richardson's garden book, 1936 : everything for the garden - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E. Miller Richardson & Co, 1936)

Richardson's garden book, 1937 : everything for the garden - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E. Miller Richardson & Co, 1937)

Richardson's garden book, 1938 : everything for the garden - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E. Miller Richardson & Co, 1938)

Richardson's garden book, 1939 : everything for the garden - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E. Miller Richardson & Co, 1939)

Riverside Farm selected varieties, vegetable & flower seeds, bulbs and plants : list 1936 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (C.H. Brewer, 1936)

Riverside Farm selected varieties, vegetable & flower seeds, bulbs and roots : list 1934 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (C.H. Brewer, 1934)

Riverside Farm selected varieties, vegetable & flower seeds, bulbs & plants, 1938 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (C.H. Brewer, 1938)

Rivista di patologia vegetale - Istituto di patologia vegetale (Università di Milano) (Tipografia del Seminario, 1901)

Rivista italiana di scienze naturali : periodico mensile premiato alle esposizioni nazionali di Palermo e di Milano ed a quella internazionale di Chicago (Ufficio, 1903)

Rivista italiana di scienze naturali : periodico mensile premiato alle esposizioni nazionali di Palermo e di Milano ed a quella internazionale di Chicago (Ufficio, 1906)

Roberts perennials, rock garden plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Roberts Rose Co, 1929)

Roc?enka, 1935 / National Seed and Importing Co., Inc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (National Seed and Importing Co., Inc, 1935)