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

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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, 1949)

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Schilderung der deutschen Pflanzenfamilien; vom botanisch-descriptiven und physiologisch-chemischen Standpunkte - Hoffmann, Hermann, 1819 -1891 (Wirth, 1851)

Schilderung der deutschen pflanzenfamilien vom botanisch-descriptiven und physiologischchemischen standpunkte - Hoffmann, Hermann, 1819 -1891 (Georg Friedrich Hener's Verlag, 1846)

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

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

Schule der systematischen Botanik - Hallier, Ernst, 1831 -1904 (W.G. Korn, 1878)

Science - American Association for the Advancement of Science. ([s.n.], 1893)

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

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.], 1907)

Science - American Association for the Advancement of Science. ([s.n.], 1908)

Science - American Association for the Advancement of Science. ([s.n.], 1910)

Science - American Association for the Advancement of Science. ([s.n.], 1913)

Science-gossip (Simpkin Marshall, Hamilton, Kent & Co, 1897)

Science progress - Burdett, Henry C., Sir, 1847 -1920 (Scientific Press, 1896)

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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.], 1871)

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

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

The Scottish naturalist - Perthshire Society of Natural Science. (Cowan & Co. [etc.], 1887)

The Scottish naturalist - Perthshire Society of Natural Science. (Cowan & Co. [etc.], 1889)

The Scottish naturalist - Perthshire Society of Natural Science. (Cowan & Co. [etc.], 1891)

The Scottish naturalist (T. Buncle & Co. [etc.], 1934)

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

Season of 1888, retail catalogue : garden seeds, plant, bulbs, trees, etc., also Japanese trees, shrubs, etc., field seeds of every description - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (H.H. Berger & Co, 1888)

A second edition of Webber's "Appendix to the catalogue of the flora of Nebraska" - Bessey, Charles E. (Charles Edwin), 1845 -1915 ([University of Nebraska?, 1892)

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)

Seed rarities, bulbs, succulents, cacti, shrubs, wild flowers : offer no. 17 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rex D. Pearce, 1932)

Seeds, bulbs, plants : horizon rarities from Rex D. Pearce : 1939-offer 31B - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rex D. Pearce, 1939)

Seeds, bulbs, plants : horizon rarities from Rex D. Pearce : 1939-offer 31A - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rex D. Pearce, 1939)

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 B - 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 23 C - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rex D. Pearce, 1935)

Seeds of rare plants : Offer no. 23 B - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rex D. Pearce, 1935)

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

Seeds of woody and herbaceous plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Pinehurst Nurseries, 1898)

A Selected bibliography of insect-vascular plant associational studies - Kingsolver, John M. (U.S. Dept. of Agriculture, Agricultural Research Service, 1984)

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

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 ([s.n.], 1897)

La Semaine horticole ([s.n.], 1898)

La Semaine horticole et guide des cultures coloniales ([s.n.], 1900)

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

Sensational two-tone begonias - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Growers Exchange Inc, 1958)

Sensitive plant survey in the Tobacco Root Mountains, Madison County, Montana, Beaverhead and Deerlodge National Forests - 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 plant surveys in the Gallatin National Forest, Montana - Montana Natural Heritage Program. (Montana Natural Heritage Program, 1994)

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

Service bulletin - United States. Forest Service. (Forest Service, U.S. Dept. of Agriculture, 1917)

sheng wu ming cheng he sheng wu xue shu yu de ci yuan - Jaeger, Edmund C. (Edmund Carroll) 1887 -1983 (ke xue chu ban she, 1979)

shi yong zhi wu tu shuo 实用植物图说 - Zhu, Xifang 朱羲方 (xin xue hui she 新学会社, 1920)

Shokubutsu-mei-i - Matsumura, Jinzo, 1856 -1928 (Maruzen Company, Ltd, 1916)

A short guide to Canadian genera of seed plants - Canada. Department of Agriculture. (Dominion of Canada, Dept. of griculture, 1938)

A short guide to Canadian genera of seed plants - Adams, John, 1872 -1950 (Dominion of Canada, Dept. of Agriculture, 1927)

Shortia : a newsletter of the Western Carolina Botanical Club - Western Carolina Botanical Club. (The Club, 1987)

SIDA, contributions to botany - Mahler, William F. (W. F. Mahler, etc.], 1962)

SIDA, contributions to botany - Mahler, William F. (W. F. Mahler, etc.], 1965)

SIDA, contributions to botany - Mahler, William F. (W. F. Mahler, etc.], 1968)

SIDA, contributions to botany - Mahler, William F. (W. F. Mahler, etc.], 1977)

SIDA, contributions to botany - Mahler, William F. (W. F. Mahler, etc.], 1985)

SIDA, contributions to botany - Mahler, William F. (W. F. Mahler, etc.], 1996)

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

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

SIDA, contributions to botany - Mahler, William F. (W. F. Mahler, etc.], 2004)

[Siebrecht & Wadley materials] - Siebrecht & Wadley. (1886)

The silva of North America :a description of the trees which grow naturally in North America exclusive of Mexico - Sargent, Charles Sprague, 1841 -1927 (Houghton, Mifflin and company, 1891)

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, 1914)

Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften. Mathematisch-Naturwissenschaftliche Classe Abt. 1 Mineralogie, Botanik, Zoologie, Geologie und Paläontologie - Kaiserl. Akademie der Wissenschaften in Wien. Mathematisch-Naturwissenschaftliche Klasse. (K.-K. Hof- und Staatsdruckerei in Commission bei C. Gerold's Sohn, 1874)

Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften. Mathematisch-Naturwissenschaftliche Klasse Abt. 3 Anatomie und Physiologie des Menschen und der Tiere sowie aus jenem der theoretischen Medizin - Kaiserl. Akademie der Wissenschaften in Wien. Mathematisch-Naturwissenschaftliche Klasse. (K.-K. Hof- und Staatsdruckerei in Kommission bei A. Hölder, 1914)

Sitzungsberichte der Königlich Preussischen Akademie der Wissenschaften zu Berlin - Deutsche Akademie der Wissenschaften zu Berlin. (Deutsche Akademie der Wissenschaften zu Berlin, 1902)

Sitzungsberichte der Königlich Preussischen Akademie der Wissenschaften zu Berlin - Deutsche Akademie der Wissenschaften zu Berlin. (Deutsche Akademie der Wissenschaften zu Berlin, 1904)

Sitzungsberichte der Königlich Preussischen Akademie der Wissenschaften zu Berlin - Deutsche Akademie der Wissenschaften zu Berlin. (Deutsche Akademie der Wissenschaften zu Berlin, 1906)

Sitzungsberichte der Königlich Preussischen Akademie der Wissenschaften zu Berlin - Deutsche Akademie der Wissenschaften zu Berlin. (Deutsche Akademie der Wissenschaften zu Berlin, 1908)

Sitzungsberichte der Königlich Preussischen Akademie der Wissenschaften zu Berlin - Deutsche Akademie der Wissenschaften zu Berlin. (Deutsche Akademie der Wissenschaften zu Berlin, 1882)

Sitzungsberichte und Abhandlungen der Naturwissenschaftlichen Gesellschaft Isis in Dresden - Gesellschaft Isis in Dresden. (Warnatz & Lehmann, 1911)

A sketch of the botany of South Carolina and Georgia - Elliott, Stephen, 1771 -1830 (J.R. Schenck, 1821)

A sketch of the botany of South Carolina and Georgia - Elliott, Stephen, 1771 -1830 (J.R. Schenck, 1824)

Sketches towards a Hortus botanicus americanus; or, Coloured plates ... of new and valuable plants of the West Indies and North and South America ... - Titford, William Jowit, 1784 -1823 (Printed for the author by C. Stower, Published by Sherwood, Neely, and Jones [etc.], 1811)

Smithsonian contributions to botany - Smithsonian Institution (Smithsonian Institution Press, 1986)

Smithsonian contributions to botany - Smithsonian Institution (Smithsonian Institution Press, 2011)

Smithsonian contributions to botany - Smithsonian Institution (Smithsonian Institution Press, 2012)

Smithsonian contributions to botany - Smithsonian Institution (Smithsonian Institution Press, 2014)

Smithsonian contributions to botany - Smithsonian Institution (Smithsonian Institution Press, 2016)

Smithsonian contributions to botany - Smithsonian Institution (Smithsonian Institution Press, 2019)

Smithsonian contributions to botany - Smithsonian Institution (Smithsonian Institution Press, 2021)

Some aspects of the biting fly problem in Canadian Sub Arctic Regions - Hocking, Brian, 1914 -1974 (University of Alberta, 1949)

Some Newfoundland wild flowers - Southcott, Mary, 1862 -1943 (Robinson, 1915)

Some statistical features of the flora of Ontario & Quebec and a comparison with those of the United States flora - Drummond, A. T. (Andrew Thomas), 1843 -1923 (s.n, 1868)

Sources of the Ohio flora - Duvel, J. W. T. (1899)

South African quarterly journal - South African Literary; Scientific Institution (1830)

South Cascades late successional reserve assessment - U.S. Fish; Wildlife Service (U.S. Department of Agriculture, Forest Service, 1998)

Southeastern biology - Association of Southeastern Biologists. (Association of Southeastern Biologists, 2001)

Southeastern biology - Association of Southeastern Biologists. (Association of Southeastern Biologists, 2019)

Southern wild flowers and trees, together with shrubs, vines and various forms of growth found through the mountains, the middle district and the low country of the South - Rowan, Ellis, 1848 -1922 (F.A. Stokes Co, 1901)

Souvenirs d'un voyage dans l'Inde exécuté de 1834 à 1839 - Bury, Priscilla Susan, 1799 -1872 (Fortin, Masson et cie [etc.], 1843)

Special 30-day sale of lining-out and other specimen stock : surplus bargains, all nursery grown : November, 1936 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.C. Robbins, 1936)

Special 30-day sale of lining-out and other stock ... surplus bargains, all nursery grown : November, 1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.C. Robbins, 1935)

Special advance offers of choice hardy American rhododendrons, azaleas, hollies, kalmias, bulbs, herbaceous plants, etc. : August 1894 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Highlands Nursery, 1894)

Special fall offerings of hardy native deciduous trees, shrubs, rock garden plants, lilies, etc. at very special prices : wholesale list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.C. Robbins, 1932)

Special list. established orchids, including cypripediums and native hardy orchids No. 73 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Lager & Hurrell, 1922)

Special list. established orchids, including cypripediums and native hardy orchids No. 77 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Lager & Hurrell, 1923)

Special low wholesale price of hardy American bulbs and plants : many new and rare - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Harlan P. Kelsey, 1901)

Special low wholesale prices for July, August and September, of fine hardy American bulbs and plants : many new and rare - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Harlan P. Kelsey, 1900)

Special papers - Ohio Academy of Science. (The Academy, 1899)

Special papers - Ohio Academy of Science. (The Academy, 1909)

Special reports of state geologist, 1860 - Geological Survey of California. (John Wilson & Son, 1880)