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

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

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1954)

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

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1972)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1980)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1989)

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

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)

La Riforma della nomenclatura botanica trattata dal Congresso botanico internazionale di Genova 1892 - Underwood, Lucien Marcus, 1853 -1907 (Tip. Sordo-muti, 1892)

Rodriguésia: Revista do Jardim Botânico do Rio de Janeiro (Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, 1937)

Rodriguésia: Revista do Jardim Botânico do Rio de Janeiro (Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, 1946)

Rodriguésia: Revista do Jardim Botânico do Rio de Janeiro (Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, 1980)

Rodriguésia: Revista do Jardim Botânico do Rio de Janeiro (Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, 2004)

Rodriguésia: Revista do Jardim Botânico do Rio de Janeiro (Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, 2005)

Rodriguésia: Revista do Jardim Botânico do Rio de Janeiro (Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, 2007)

Rodriguésia: Revista do Jardim Botânico do Rio de Janeiro (Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, 2010)

Rose, cacti, 1909 - 1917 - Rose, J. N. (Joseph Nelson), 1862 -1928 (1909)

Rotation, rest-rotation, and season-long grazing on a mountain range in Wyoming - Rocky Mountain Forest; Range Experiment Station (Fort Collins, Colo.) (Rocky Mountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1965)

Royal Palm Nurseries : 1907 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Reasoner Bros, 1907)

Royal Poinciana Nurseries (Incorporated) [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Royal Poinciana Nurseries (Incorporated), 1916)

Royal Poinciana Nurseries (Incorporated) [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Royal Poinciana Nurseries (Incorporated), 1917)

Royal Poinciana Nurseries (Incorporated) [catalog]. 1918 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Royal Poinciana Nurseries (Incorporated), 1918)

Rozpravy české akademie císaře Františka Josefa pro vědy, slovesnost a umění. Třída II, Mathematicko-přírodnicka - Česka akademie Císaře Františka Josefa pro vědy slovenost a umění. Třida II: Mathematicko-přírodnická. (1891)

Rural New Yorker - Moore, D. D. T. (Rural Pub. Co. [etc.], 1909)

Rural New Yorker - Moore, D. D. T. (Rural Pub. Co. [etc.], 1936)

Rural New Yorker - Moore, D. D. T. (Rural Pub. Co. [etc.], 1937)

Rustic adornments for homes of taste - Hibberd, Shirley, 1825 -1890 (W.H. and L. Collingridge, 1895)

Sämereien zum Tausch aus dem grossherzoglichen botanischen Garten der Universität Rostock - Universität Rostock. Botanischer Garten. (Botanischer Garten zu Rostock, 1939)

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Sargentia :a continuation of the contributions from the Arnold Arboretum of Harvard University - Arnold Arboretum. (The Arnold Arboretum of Harvard University, 1945)

Schriften der Königlichen Physikalisch-Ökonomischen Gesellschaft zu Königsberg - Königliche Physikalisch-Ökonomische Gesellschaft zu Königsberg. (In Commission bei Gräfe und Unzer, 1863)

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

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Science - American Association for the Advancement of Science. ([s.n.], 1909)

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A second century of ferns : being figures with brief descriptions of one hundred new, or rare, or imperfectly known species of ferns from various parts of the world - Hooker, William Jackson, Sir, 1785 -1865 (Dulau, 1864)

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The seed plants, ferns, and fern allies of the Austin Region - Young, Mary Sophie, 1919 (The University, 1920)

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)

Select plants readily eligible for industrial culture or naturalisation in Victoria - Mueller, Ferdinand von, 1825 -1896 (Printed for the government of Victoria by McCarron, Bird & co, 1876)

Selectus e seminario Horti Botanici Cracoviensis - Uniwersytet Jagielloński. Ogród Botaniczny. (Hort Botanici Gracoviensis, 1905)

Selectus e seminario Horti Botanici Cracoviensis - Uniwersytet Jagielloński. Ogród Botaniczny. (Hort Botanici Gracoviensis, 1906)

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Semillas recolectadas durante ano ... y que se ofrecen a cambio de otras - Universidad de Valencia. Jardin Botanico. (Imprenta de Manuel Alufre, 1907)

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shan xi qing mu chuan zi ran bao hu qu de sheng wu duo yang xing 陕西青木川自然保护区的生物多样性 - jiang zhi gang zhu bian 蒋志刚主编 (qing hua da xue chu ban she 清华大学出版社)

shen nong jia zhi wu 神农架植物 - Zhongguo ke xue yuan. Wuhan zhi wu yan jiu suo 中国科学院武汉植物 研究所 (hu bei ren min chu ban she 湖北人民出版社, 1980)

sheng wu duo yang xing yu ren lei wei lai - Chen, Yiyu. (zhong guo lin ye chu ban she, 1998)

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SIDA, contributions to botany - Mahler, William F. (W. F. Mahler, etc.], 1983)

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SIDA, contributions to botany - Mahler, William F. (W. F. Mahler, etc.], 1998)

SIDA, contributions to botany - Mahler, William F. (W. F. Mahler, etc.], 2000)

SIDA, contributions to botany - Mahler, William F. (W. F. Mahler, etc.], 2002)

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Sinonimia vulgar y científica de las plantas mexicanas - Alcocer, Gabriel V., (Secretaría de Fomento, 1902)

Sitzungsberichte. Abt. 1, Mineralogie, Krystallographie, Botanik, Physiologie der Pflanzen, Zoologie, Paläontologie, Geologie, physische Geographie und Reisen - Kaiserl. Akademie der Wissenschaften in Wien. Mathematisch-Naturwissenschaftliche Klasse. (K.-K. Hof- und Staatsdruckerei in Kommission bei A. Hölder, 1892)

Sitzungsberichte. Abt. 1, Mineralogie, Krystallographie, Botanik, Physiologie der Pflanzen, Zoologie, Paläontologie, Geologie, physische Geographie und Reisen - Kaiserl. Akademie der Wissenschaften in Wien. Mathematisch-Naturwissenschaftliche Klasse. (K.-K. Hof- und Staatsdruckerei in Kommission bei A. Hölder, 1907)