Rocky mountain flowers; an illustrated guide for plantlovers and plant-users - Clements, Frederic E. (Frederic Edward), 1874 -1945 (the H.W. Wilson company, 1914)

Rodriguésia: Revista do Jardim Botânico do Rio de Janeiro (Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, 1976)

Roehrs Nursery : at the sign of the tree - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Julius Roehrs Co, 1917)

Roehrs Nursery : at the sign of the tree : [catalog] - Roehrs, Julius, Company. (Julius Roehrs Co, 1917)

The romance of natural history - Gosse, Philip Henry, 1810 -1888 (J. Nisbet, 1862)

The romance of natural history - Gosse, Philip Henry, 1810 -1888 (J. Nisbet, 1871)

The romance of natural history - Gosse, Philip Henry, 1810 -1888 (J. Nisbet, 1886)

The romance of natural history - Gosse, Philip Henry, 1810 -1888 (J. Nisbet, 1861)

The romance of natural history - Gosse, Philip Henry, 1810 -1888 (J. Nisbet, 1870)

Romance of natural history - Gosse, Philip Henry, 1810 -1888 (New Amsterdam Book Co, 1902)

The romance of natural history - Gosse, Philip Henry, 1810 -1888 (J. Nisbet, 1860)

The romance of natural history - Gosse, Philip Henry, 1810 -1888 (J. Nisbet, 1866)

Romance of natural history - Gosse, Philip Henry, 1810 -1888 (New Amsterdam Book Company, 1903)

The romance of natural history - Gosse, Philip Henry, 1810 -1888 (Gould and Lincoln, 1861)

The romance of plant life, interesting descriptions of the strange and curious in the plant world - Elliot, G. F. Scott (George Francis Scott), 1862 -1934 (J. B. Lippincott, 1907)

Rose, greenhouse notes - Rose, J. N. (Joseph Nelson), 1862 -1928 (1915)

Route near the thirty-fifth parallel explored by Lieutenant A.W. Whipple, Topographical Engineers, in 1853 and 1854 - Bigelow, John M. 1804 -1878 (B. Tucker, 1856)

The Royal Botanic Garden Edinburgh 1670-1970 - Fletcher, Harold R. (Her Majesty's Stationery Office, 1970)

The Royal botanic gardens, Kew : historical and descriptive - Bean, W. J. (William Jackson), 1863 -1947 (Cassell and Co., Ltd, 1908)

Rural New Yorker - Moore, D. D. T. (Rural Pub. Co. [etc.], 1901)

Rural New Yorker - Moore, D. D. T. (Rural Pub. Co. [etc.], 1929)

Rural New Yorker - Moore, D. D. T. (Rural Pub. Co. [etc.], 1931)

Saguaroland Bulletin - Desert Botanical Garden (Ariz.) (Arizona Cactus and Native Flora Society, 1948)

Saguaroland Bulletin - Desert Botanical Garden (Ariz.) (Arizona Cactus and Native Flora Society, 1949)

Saguaroland Bulletin - Desert Botanical Garden (Ariz.) (Arizona Cactus and Native Flora Society, 1951)

Saguaroland Bulletin - Desert Botanical Garden (Ariz.) (Arizona Cactus and Native Flora Society, 1952)

Saguaroland Bulletin - Desert Botanical Garden (Ariz.) (Arizona Cactus and Native Flora Society, 1953)

Saguaroland Bulletin - Desert Botanical Garden (Ariz.) (Arizona Cactus and Native Flora Society, 1954)

Saguaroland Bulletin - Desert Botanical Garden (Ariz.) (Arizona Cactus and Native Flora Society, 1955)

Saguaroland Bulletin - Desert Botanical Garden (Ariz.) (Arizona Cactus and Native Flora Society, 1956)

Saguaroland Bulletin - Desert Botanical Garden (Ariz.) (Arizona Cactus and Native Flora Society, 1957)

Saguaroland Bulletin - Desert Botanical Garden (Ariz.) (Arizona Cactus and Native Flora Society, 1958)

Saguaroland Bulletin - Desert Botanical Garden (Ariz.) (Arizona Cactus and Native Flora Society, 1959)

Saguaroland Bulletin - Desert Botanical Garden (Ariz.) (Arizona Cactus and Native Flora Society, 1961)

Saguaroland Bulletin - Desert Botanical Garden (Ariz.) (Arizona Cactus and Native Flora Society, 1962)

Saguaroland Bulletin - Desert Botanical Garden (Ariz.) (Arizona Cactus and Native Flora Society, 1963)

Saguaroland Bulletin - Desert Botanical Garden (Ariz.) (Arizona Cactus and Native Flora Society, 1964)

Saguaroland Bulletin - Desert Botanical Garden (Ariz.) (Arizona Cactus and Native Flora Society, 1965)

Saguaroland Bulletin - Desert Botanical Garden (Ariz.) (Arizona Cactus and Native Flora Society, 1966)

Saguaroland Bulletin - Desert Botanical Garden (Ariz.) (Arizona Cactus and Native Flora Society, 1967)

Saguaroland Bulletin - Desert Botanical Garden (Ariz.) (Arizona Cactus and Native Flora Society, 1968)

Saguaroland Bulletin - Desert Botanical Garden (Ariz.) (Arizona Cactus and Native Flora Society, 1969)

Saguaroland Bulletin - Desert Botanical Garden (Ariz.) (Arizona Cactus and Native Flora Society, 1970)

Saguaroland Bulletin - Desert Botanical Garden (Ariz.) (Arizona Cactus and Native Flora Society, 1971)

Saguaroland Bulletin - Desert Botanical Garden (Ariz.) (Arizona Cactus and Native Flora Society, 1972)

Saguaroland Bulletin - Desert Botanical Garden (Ariz.) (Arizona Cactus and Native Flora Society, 1973)

Saguaroland Bulletin - Desert Botanical Garden (Ariz.) (Arizona Cactus and Native Flora Society, 1974)

Saguaroland Bulletin - Desert Botanical Garden (Ariz.) (Arizona Cactus and Native Flora Society, 1975)

Saguaroland Bulletin - Desert Botanical Garden (Ariz.) (Arizona Cactus and Native Flora Society, 1976)

Saguaroland Bulletin - Desert Botanical Garden (Ariz.) (Arizona Cactus and Native Flora Society, 1977)

Saguaroland Bulletin - Desert Botanical Garden (Ariz.) (Arizona Cactus and Native Flora Society, 1978)

Saguaroland Bulletin - Desert Botanical Garden (Ariz.) (Arizona Cactus and Native Flora Society, 1979)

Saguaroland Bulletin - Desert Botanical Garden (Ariz.) (Arizona Cactus and Native Flora Society, 1980)

Saguaroland Bulletin - Desert Botanical Garden (Ariz.) (Arizona Cactus and Native Flora Society, 1982)

Saguaroland Bulletin - Desert Botanical Garden (Ariz.) (Arizona Cactus and Native Flora Society, 1984)

Saguaroland Bulletin - Desert Botanical Garden (Ariz.) (Arizona Cactus and Native Flora Society, 1985)

The Salton Sea; a study of the geography, the geology, the floristics, and the ecology of a desert basin - MacDougal, Daniel Trembly, 1865 -1958 (Carnegie institution of Washington, 1914)

The Salton Sea; a study of the geography, the geology, the floristics, and the ecology of a desert basin - MacDougal, Daniel Trembly, 1865 -1958 (Carnegie Institution of Washington, 1914)

Samen-Verzeichnis des Staatl. Botanischen Gartens zu Dresden - Technische Universität Dresden. Botanischer Garten. (Koeniglich Botanischer Garten zu Dresden, 1915)

Samentausch-Liste der Wilhelmagewächshäuser - Schloss Wilhelma (Stuttgart, Germany) (1936)

Samenzucht, Samenhandlung, Handelsgärtnerei : Jahrgang 77, Nr. 176, Gründungsjahr 1855 / Carl Pabst - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Carl Pabst, 1932)

Samenzucht und Samenhandlung, Handelsgärtnerei : Jubiläums-Katalog, 1930, 1855-1930, 75 Jahre / Carl Pabst - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Carl Pabst, 1930)

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

Schriften der Physikalisch-Ökonomischen Gesellschaft zu Königsberg - Physikalisch-Ökonomische Gesellschaft zu Königsberg (In Commission bei Gräfe und Unzer, 1900)

Schweizerische Zeitschrift für Gartenbau (Verlag von Meyer und Zeller, 1846)

Schweizerische Zeitschrift für Gartenbau (Verlag von Meyer und Zeller, 1847)

Schweizerische Zeitschrift für Gartenbau (Verlag von Meyer und Zeller, 1848)

Schweizerische Zeitschrift für Gartenbau (Verlag von Meyer und Zeller, 1850)

Schweizerische Zeitschrift für Land- und Gartenbau (Verlag von Meyer und Zeller, 1844)

Schweizerische Zeitschrift für Land- und Gartenbau (Verlag von Meyer und Zeller, 1845)

Science - American Association for the Advancement of Science. ([s.n.], 1883)

Science - American Association for the Advancement of Science. ([s.n.], 1880)

Science - American Association for the Advancement of Science. ([s.n.], 1903)

Science - American Association for the Advancement of Science. ([s.n.], 1904)

Science - American Association for the Advancement of Science. ([s.n.], 1906)

Science - American Association for the Advancement of Science. ([s.n.], 1915)

Science-gossip (Simpkin Marshall, Hamilton, Kent & Co, 1899)

Science-gossip (Simpkin Marshall, Hamilton, Kent & Co, 1900)

Scott's roses and other beautiful flowers - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (The Company, 1890)

Seed catalog : season 1929 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hermann Glieme, Inc, 1929)

Seed catalog : season 1930 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hermann Glieme, Inc, 1930)

Seed catalog : season of 1928 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hermann Glieme, Inc, 1928)

Seed catalog : season of 1931 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hermann Glieme, Inc, 1931)

Seed catalog : season of 1932 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hermann Glieme, Inc, 1932)

Seeds and plants imported through the Section of Seed and Plant Introduction for distribution in cooperation with the Agricultural experiment stations : inventory no. 9, numbers 4351-5500 - United States. Bureau of Plant Industry. (U.S. Dept. of Agriculture, Bureau of Plant Industry, 1902)

Seeds and plants imported - United States. Department of Agriculture. (G.P.O, 1898)

Seeds of rare plants Offer no. 21 B - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rex D. Pearce, 1934)

Seeds of rare plants Offer no. 21 C - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rex D. Pearce, 1934)

Seeds of rare plants Offer no. 21 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rex D. Pearce, 1934)

Seeds of rare plants : offer no. 25 B - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rex D. Pearce, 1935)

Seeds of rare plants : offer no. 27B - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rex D. Pearce, 1937)

Seeds of rare plants : offer no. 27C - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rex D. Pearce, 1937)

Seeds of rare plants : offer no. 27D - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rex D. Pearce, 1937)

Seeds of rare plants : offer no. 29A - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rex D. Pearce, 1938)

Seeds of rare plants : offer no. 29B - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rex D. Pearce, 1938)

Select extra-tropical plants : readily eligible for industrial culture or naturalization, with indications of their native countries and some of their uses - Mueller, Ferdinand von, 1825 -1896 (J. Ferres, 1885)

Select extra-tropical plants readily eligible for industrial culture or naturalisation with indications of their native countries and some of their uses - Mueller, Ferdinand von, 1825 -1896 (C. Troedel and Co, 1891)

Select extra-tropical plants readily eligible for industrial culture or naturalisation with indications of their native countries and some of their uses - Mueller, Ferdinand von, 1825 -1896 (1895)

Select extra-tropical plants readily eligible for industrial culture or naturalization, with indications of their native countries and some of their uses - Mueller, Ferdinand von, 1825 -1896 (G.S. Davis, 1884)