Supplementum Florae Lapponicae, quam edidit Dr. Georgius Wahlenberg - Sommerfelt, Søren Christian, 1794 -1838 (Typis Borgianis et Gröndahlianis, 1826)

Survey of airborne pollen and fungus spores of New York State; a preliminary report - Ogden, Eugene Cecil. (Univ. of the State of New York, 1957)

A survey of Canadian plants in relation to their environment - Adams, John, 1872 -1950 (Canada Dept. of Agriculture, 1927)

A survey of extent and cost of weed control and specific weed problems - United States. Agricultural Research Service. (U.S. Dept. of Agriculture, Agricultural Research Service, 1965)

Survey of rare vascular plants in Fidler-Greywillow Wildland Provincial Park - Alberta. Parks; Protected Areas Division. (Alberta Community Development, Parks and Protected Areas, 2005)

The survival of the unlike : a collection of evolution essays suggested by the study of domestic plants - Bailey, L. H. (Liberty Hyde), 1858 -1954 (Macmillan Company, 1896)

The survival of the unlike; a collection of evolution essays suggested by the study of domestic plants - Bailey, L. H. (Liberty Hyde), 1858 -1954 (Macmillan, 1906)

Svensk botanik - Swartz, Olof, 1760 -1818 (Tryckt hos C. Delén, 1802)

Svensk botanisk tidskrift - Svenska botaniska föreningen. (Svenska botaniska föreningen [etc.], 1908)

Svensk botanisk tidskrift - Svenska botaniska föreningen. (Svenska botaniska föreningen [etc.], 1909)

Svensk botanisk tidskrift - Svenska botaniska föreningen. (Svenska botaniska föreningen [etc.], 1911)

Svensk botanisk tidskrift - Svenska botaniska föreningen. (Svenska botaniska föreningen [etc.], 1912)

Svensk botanisk tidskrift - Svenska botaniska föreningen. (Svenska botaniska föreningen [etc.], 1913)

Svensk botanisk tidskrift - Svenska botaniska föreningen. (Svenska botaniska föreningen [etc.], 1916)

Svensk botanisk tidskrift - Svenska botaniska föreningen. (Svenska botaniska föreningen [etc.], 1917)

Svensk botanisk tidskrift - Svenska botaniska föreningen. (Svenska botaniska föreningen [etc.], 1920)

Svensk botanisk tidskrift - Svenska botaniska föreningen. (Svenska botaniska föreningen [etc.], 1921)

Svensk botanisk tidskrift - Svenska botaniska föreningen. (Svenska botaniska föreningen [etc.], 1923)

Svensk fanerogamflora - Lindman, C. A. M. (Carl Axel Magnus), 1856 -1928 (P.A. Norstedt, 1918)

Svensk flora. Beskrifning öfver Sveriges fanerogamer och ormbunkar - Kindberg, N. C. (Nils Conrad), 1832 -1910 (P.M. Sahlströms bokhandel (H.W. Tullberg), 1877)

Svenska Linnésällskapets årsskrift = Yearbook of the Swedish Linnaeus Society - Svenska Linnésällskapet. (Almqvist & Wiksells, 1919)

Swan River Nursery - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Swan River Nursery, 1927)

Swan River Nursery 1924 [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Swan River Nursery, 1924)

Swan River Nursery 1925 [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Swan River Nursery, 1925)

Swan River Nursery 1926 [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Swan River Nursery, 1926)

Swan River Nursery, 1929 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Swan River Nursery, 1929)

Swan River Nursery, 1931 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Swan River Nursery, 1931)

Swan River Nursery, 1932 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Swan River Nursery, 1932)

Swan River Nursery, 1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Swan River Nursery, 1935)

Swan River Nursery, 1937 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Swan River Nursery, 1937)

[Swan River Nursery materials] - Liberty Hyde Bailey Hortorium. Ethel Z. Bailey Horticultural Catalogue Collection. (1922)

Sweet's Hortus britannicus; or, A catalogue of plants, indigenous, or cultivated in the gardens of Great Britain; arranged according to their natural orders, with references to the Linnean class and order to which each genus belongs; the whole brought up to the present time, and contains above 34,000 plants ... - Sweet, Robert, 1783 -1835 (J. Ridgway, 1830)

Sweet's Hortus britannicus; or, A catalogue of plants, indigenous, or cultivated in the gardens of Great Britain;arranged according to their natural orders, with references to the Linnean class and order to which each genus belongs; the whole brought up to the present time, and contains above 34,000 plants ... - Sweet, Robert, 1783 -1835 (J. Ridgway, 1830)

Syllabus de Pflanzenfamilien, eine Übersicht über das gesamte Pflanzensystem mit besonderer Berücksichtigung der Medizinalund Nutzpflanzen nebst einer Ubersicht über die Florenreiche und Florengebiete der Erde zum Gebrauch bei Vorlesungen und Studien über spezielle und medizinisch-pharmazeutische Botanik - Engler, Adolf, 1844 -1930 (Borntraeger, 1919)

Syllabus der Pflanzenfamilien : eine Übersicht über das gesamte Pflanzensystem mit Berücksichtigung der Medizinal- und Nutzpflanzen, nebst einer Übersicht über die Florenreiche und Florengebiete der Erde : zum Gebrauch bei Vorlesungen und Studien über spezielle und medizinisch-pharmazeutische Botanik - Engler, Adolf, 1844 -1930 (Gebrüder Borntraeger, 1904)

Syllabus der pflanzenfamilien : eine übersicht über das gesamte pflanzensystem mit berücksichtigung der medizinal- und nutzpflanzen, nebst einer übersicht über die florenreiche und florengebiete der erde, über spezielle und medizinisch-pharmazeutische botanik - Engler, Adolf, 1844 -1930 (Gebrüder Borntraeger, 1909)

Syllabus der Pflanzenfamilien : eine Übersicht über das gesamte Pflanzensystem mit Berücksichtigung der Medicinal- und Nutzpflanzen nebst einer Übersicht über die Florenreiche und Florengebiete der Erde zum Gebrauch bei Vorlesungen und Studien über specielle und medicinisch-pharmaceutische Botanik - Engler, Adolf, 1844 -1930 (Borntraeger, 1903)

[Syllabus of lectures on materia medica and therapeutics, delivered in the University of London] - Candolle, Augustin Pyramus de, 1778 -1841 ([John Taylor], 1829)

Sylloge algarum omnium hucusque cognitarum - Toni, Giovanni Battista de, 1864 -1924 (Typis Seminarii, 1889)

Sylloge algarum omnium hucusque cognitarum - Boston Society of Natural History. (Sumptibus auctoris, 1895)

Sylloge fungorum omnium hucusque cognitorum - Saccardo, P. A. (Pier Andrea), 1845 -1920 (sumptibus auctoris, 1882)

Sylloge fungorum omnium hucusque cognitorum - Saccardo, P. A. (Pier Andrea), 1845 -1920 (sumptibus auctoris, 1883)

Sylloge fungorum omnium hucusque cognitorum - Saccardo, P. A. (Pier Andrea), 1845 -1920 (sumptibus auctoris, 1884)

Sylloge fungorum omnium hucusque cognitorum - Saccardo, P. A. (Pier Andrea), 1845 -1920 (sumptibus auctoris, 1886)

Sylloge fungorum omnium hucusque cognitorum - Saccardo, P. A. (Pier Andrea), 1845 -1920 (sumptibus auctoris, 1888)

Sylloge fungorum omnium hucusque cognitorum - Saccardo, P. A. (Pier Andrea), 1845 -1920 (sumptibus auctoris, 1788)

Sylloge fungorum omnium hucusque cognitorum - Saccardo, P. A. (Pier Andrea), 1845 -1920 (sumptibus auctoris, 1889)

Sylloge fungorum omnium hucusque cognitorum - Saccardo, P. A. (Pier Andrea), 1845 -1920 (sumptibus auctoris, 1891)

Sylloge fungorum omnium hucusque cognitorum - Saccardo, P. A. (Pier Andrea), 1845 -1920 (sumptibus auctoris, 1892)

Sylloge fungorum omnium hucusque cognitorum - Saccardo, P. A. (Pier Andrea), 1845 -1920 (sumptibus auctoris, 1895)

Sylloge fungorum omnium hucusque cognitorum - Saccardo, P. A. (Pier Andrea), 1845 -1920 (sumptibus auctoris, 1897)

Sylloge fungorum omnium hucusque cognitorum - Saccardo, P. A. (Pier Andrea), 1845 -1920 (sumptibus auctoris, 1898)

Sylloge fungorum omnium hucusque cognitorum - Saccardo, P. A. (Pier Andrea), 1845 -1920 (sumptibus auctoris, 1899)

Sylloge fungorum omnium hucusque cognitorum - Saccardo, P. A. (Pier Andrea), 1845 -1920 (sumptibus auctoris, 1902)

Sylloge fungorum omnium hucusque cognitorum - Saccardo, P. A. (Pier Andrea), 1845 -1920 (sumptibus auctoris, 1906)

Sylloge fungorum omnium hucusque cognitorum - Saccardo, P. A. (Pier Andrea), 1845 -1920 (sumptibus auctoris, 1913)

Sylloge fungorum omnium hucusque cognitorum - Saccardo, P. A. (Pier Andrea), 1845 -1920 (sumptibus auctoris, 1931)

Syllogeus - National Museum of Natural Sciences (Canada) (National Museum of Natural Sciences, 1985)

Syllogeus - National Museum of Natural Sciences (Canada) (National Museum of Natural Sciences, 1987)

Sylva florifera : the shrubbery historically and botanically treated : with observations on the formation of ornamental plantations, and picturesque scenery - Phillips, Henry, 1775 -1838 (Printed for Longmans, Hurst, Rees, Orme, and Brown [by A. & R. Spottiswoode], 1823)

Sylva florifera: the shrubbery historically and botanically treated: with observations on the formation of ornamental plantations, and picturesque scenery - Phillips, Henry, 1775 -1838 (Longmans, Hurst, Rees, Orme, and Brown, 1823)

Sylva telluriana. Mantis. synopt. New genera and species of trees and shrubs of North America, and other regions of the earth, omitted or mistaken by the botanical authors and compilers, or not properly classified, no reduced by their natural affinities to the proper natural orders and tribes. By C.S. Rafinesque. Being a supplement to the Flora telluriana - Rafinesque, C. S. (Constantine Samuel), 1783 -1840 (Printed for the author and publisher, 1838)

Sylva Telluriana. Mantis synopt. New genera and species of trees and shrubs of North America, and other regions of the earth, omitted or mistaken by the botanical authors and compilers, or not properly classified, now reduced by their natural affinities to the proper natural orders and tribes - Rafinesque, C. S. (Constantine Samuel), 1783 -1840 (Printed for the author and publisher, 1838)

Sylva telluriana. Mantis synopt. New genera and species of trees and shrubs of North America, and other regions of the earth, omitted or mistaken by the botanical authors and compilers, or not properly classified, now reduced by their natural affinities to the proper natural orders and tribes - Rafinesque, C. S. (Constantine Samuel), 1783 -1840 (Printed for the author and publisher, 1838)

Sylvan Ontario a guide to our native trees and shrubs - Muldrew, William Hawthorne, 1867 -1901 (W. Briggs, 1901)

Sylvan Ontario : a guide to our native trees and shrubs - Muldrew, W. H. (William Hawthorne), 1867 -1904 (W. Briggs, 1901)

Sylvan sketches - Kent, Elizabeth. (Whittaker, Treacher and co, 1831)

Sylvan sketches; or, A companion to the park and the shrubbery: with illustrations from the works of the poets - Kent, Elizabeth. (Whittaker, Treacher and co, 1831)

Sylvan sketches; or, A companion to the parks and the shrobbery: with illustrations from the works of the poets - Kent, Elizabeth. (Whittaker, Treacher, 1831)

Symbolae Antillanae,seu, Fundamenta florae Indiae Occidentalis - Urban, Ignaz, 1848 -1931 (Fratres Borntraeger ;Paul Klincksieck, 1903)

Symbolae Antillanae,seu, Fundamenta florae Indiae Occidentalis - Urban, Ignaz, 1848 -1931 (Fratres Borntraeger ;Paul Klincksieck, 1898)

Symbolae Antillanae,seu, Fundamenta florae Indiae Occidentalis - Urban, Ignaz, 1848 -1931 (Fratres Borntraeger ;Paul Klincksieck, 1920)