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, 1861)

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)

Seedlings and transplants : hardy trees and plants for 1931 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Morris Nursery Company, 1931)

Seeds, plants and bulbs : a year-round catalog - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rex D. Pearce, 1949)

Seeds, plants and bulbs : a year-round catalog : 1952, offer 57A - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rex D. Pearce, 1952)

Seeds, plants and bulbs : a year-round catalog : offer 53A, 1950 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rex D. Pearce, 1950)

Seeds, plants and bulbs : a year-round catalog : offer 53B, 1950 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rex D. Pearce, 1950)

Seeds, plants and bulbs : offer no. 61-A, 1954 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Pearce Seed Co, 1954)

Seeds, plants and bulbs : offer no. 63A, 1955 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Pearce Seed Company, 1955)

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)

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

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

Semillas recolectadas durante ano ... y que se ofrecen a cambio de otras - Universidad de Valencia. Jardin Botanico. (Imprenta de Manuel Alufre, 1894)

Semillas recolectadas durante ano ... y que se ofrecen a cambio de otras - Universidad de Valencia. Jardin Botanico. (Imprenta de Manuel Alufre, 1895)

Semillas recolectadas durante ano ... y que se ofrecen a cambio de otras - Universidad de Valencia. Jardin Botanico. (Imprenta de Manuel Alufre, 1896)

seng lin diao cha nei ye zi liao hui bian 森林调查内业资料汇编 - zhong hua ren ming gong he guo lin ye bu diao cha she ji ju 中华人民共和国林业部调查设计局 (zhong guo lin ye chu ban she 中国林业出版社, 1957)

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 surveys, 1989 : U.S. Forest Service, Region 1, Gallatin National Forest - Montana Natural Heritage Program. (Montana Natural Heritage Program, 1989)

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

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)

shan xi zhong yao zhi 山西中药志 - shan xi wei sheng ting 山西卫生厅 (shan xi wei sheng ting 山西卫生厅, 1959)

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 tai xue gai lun - Duvigneaud, Paul. (ke xue chu ban she, 1987)

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

sheng wu xue - Qian, Yingqian (fu jian jiao yu chu ban she, 2004)

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

A short flora of Berwickshire - Braithwaite, Michael E. (M.E. Braithwaite, 2014)

A short guide to the best varieties of evergreens, trees, shrubs, vines, fruit, perennials, etc. in small sizes as well as large, with special prices : spring 1952. catalog no. 150 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.W. Kelsey Nursery Co, 1952)

Short guide to the best varieties of hardy plants : spring 1959. Catalog no. 163 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Kelsey Nursery Service, 1959)

Shortia : a newsletter of the Western Carolina Botanical Club - Western Carolina Botanical Club. (The Club, 1989)

Shortia : a newsletter of the Western Carolina Botanical Club - Western Carolina Botanical Club. (The Club, 2001)

SIDA, contributions to botany - Mahler, William F. (W. F. Mahler, etc.], 1967)

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.], 1979)

SIDA, contributions to botany - Mahler, William F. (W. F. Mahler, etc.], 1988)

SIDA, contributions to botany - Mahler, William F. (W. F. Mahler, etc.], 1992)

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

SIDA, contributions to botany - Mahler, William F. (W. F. Mahler, etc.], 2006)

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

Silva Capensis, or a description of South African forest trees and arborescent shrubs used for technical and economical purposes - Pappe, Karl Wilhelm Ludwig, 1803 -1862 (Ward, 1862)

Silvical characteristics of Engelmann spruce - Alexander, Robert R. (USDA, Forest Service, Rocky Mountain Forest and Range Experiment Station, 1984)

Sitzungs-Berichte der naturwissenschaftlichen Gesellschaft Isis zu Dresden - Gesellschaft Isis in Dresden. (Die Gesellschaft, 1866)

Sitzungs-Berichte der naturwissenschaftlichen Gesellschaft Isis zu Dresden - Gesellschaft Isis in Dresden. (Die Gesellschaft, 1862)

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, 1901)

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, 1904)

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, 1919)

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, 1921)

Sitzungsberichte der Gesellschaft Naturforschender Freunde zu Berlin - Gesellschaft Naturforschender Freunde zu Berlin. (Gesellschaft Naturforschender Freunde, 1871)

Sitzungsberichte der Preussischen Akademie der Wissenschaften - Preussische Akademie der Wissenschaften. Physikalisch-Mathematische Klasse (Akademie der Wissenschaften, 1922)

Sitzungsberichte und Abhandlungen der Naturwissenschaftlichen Gesellschaft Isis in Dresden - Gesellschaft Isis in Dresden. (Warnatz & Lehmann, 1889)

Sitzungsberichte und Abhandlungen der Naturwissenschaftlichen Gesellschaft Isis in Dresden - Gesellschaft Isis in Dresden. (Warnatz & Lehmann, 1892)

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

Sitzungsberichte und Abhandlungen der Naturwissenschaftlichen Gesellschaft Isis in Dresden - Gesellschaft Isis in Dresden. (Warnatz & Lehmann, 1920)

Size and form in plants with special reference to the primary conducting tracts - Bower, F. O. (Frederick Orpen), 1855 -1948 (Macmillan, 1930)

A sketch of the natural history of the District of Columbia together with an indexed edition of the U.S. Geological survey's 1917 map of Washington and vicinity - McAtee, W. L. (Waldo Lee) 1883 -1962 (H.L. & J.B. McQueen, Inc, 1918)

A sketch of the natural history of the District of Columbia together with an indexed ed. of the U. S. Geological survey's 1917 map of Washington and vicinity - McAtee, W. L. (Waldo Lee) 1883 -1962 ([Press of H. L. & J. B. McQueen, inc.], 1918)

Skogsvårdsföreningens tidskrift - Föreningen för skogsvård (Sweden) (Centraltryckeriet, 1908)

Skrifter utgit av Videnskapsselskapet i Kristiania. I, Matematisk-naturvidenskabelig klasse - Christiania videnskabs-selskab. I–Math.-naturv. klasse. (I Kommission hos J. Dybwad, 1914)

Skrifter utgit av Videnskapsselskapet i Kristiania. I, Matematisk-naturvidenskabelig klasse - Christiania videnskabs-selskab. I–Math.-naturv. klasse. (I Kommission hos J. Dybwad, 1911)

Skrifter utgit av Videnskapsselskapet i Kristiania. I, Matematisk-naturvidenskabelig klasse - Christiania videnskabs-selskab. I–Math.-naturv. klasse. (I Kommission hos J. Dybwad, 1913)

Smithsonian contributions to botany - Smithsonian Institution (Smithsonian Institution Press, 1975)

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

Somerset archaeology and natural history : the proceedings of the Somerset Archaeological and Natural History Society - Somerset Archaeological; Natural History Society. (Somerset Archaeological and Natural History Society, 1856)

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 bargains, October 1931 : all strong nursery grown except where noted otherwise [price list] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.C. Robbins, 1931)

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

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

Special scientific report. Wildlife - U.S. Fish; Wildlife Service (The Service, 1983)

Special spring prices for the benefit of early spring buyers : spring delivery if desired, prices void after March 1, 1934 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.C. Robbins, 1934)

Special thirty day sale of hardy ornamental plants : April 1 to April 30, 1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.C. Robbins, 1935)

Species Blancoanae :a critical revision of the Philippine species of plants described by Blanco and by Llanos - Merrill, Elmer D. (Elmer Drew), 1876 -1956 (Bureau of Printing, 1918)

Species filicum; being descriptions of the known ferns, particularly of such as exist in the author's herbarium, or are with sufficient accuracy described in works to which he has had access; accompanied with numerous figures - Hooker, William Jackson, Sir, 1785 -1865 (W. Pamplin, 1846)

Species filicum; being descriptions of the known ferns, particularly of such as exist in the author's herbarium, or are with sufficient accuracy described in works to which he has had access; accompanied with numerous figures - Hooker, William Jackson, Sir, 1785 -1865 (W. Pamplin, 1860)

Species filicum; being descriptions of the known ferns, particularly of such as exist in the author's herbarium, or are with sufficient accuracy described in works to which he has had access; accompanied with numerous figures - Hooker, William Jackson, Sir, 1785 -1865 (W. Pamplin, 1862)

Species filicum; being descriptions of the known ferns, particularly of such as exist in the author's herbarium, or are with sufficient accuracy described in works to which he has had access; accompanied with numerous figures - Hooker, William Jackson, Sir, 1785 -1865 (W. Pamplin, 1864)