Sporeplanterne (kryptogamerne) - Kolderup Rosenvinge, L. (Lauritz), 1858 -1939 (Glydendalske Boghandel, Nordisk Forlag, 1913)

Sprawozdanie Komisyi Fizyograficznej (1891)

Sprawozdanie Komisyi Fizyograficznej (1892)

Sprawozdanie Komisyi Fizyograficznej (1911)

Spring 1953. Catalog no. 152 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Kelsey Nursery Service, 1953)

Spring 1954. Catalog no. 153 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Kelsey Nursery Service, 1954)

Spring 1955. Catalog no. 155 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Kelsey Nursery Service, 1955)

Spring 1956. Catalog no. 157 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Kelsey Nursery Service, 1956)

Spring 1957. Catalog no. 159 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Kelsey Nursery Service, 1957)

Spring 1958. Catalog no. 159 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Kelsey Nursery Service, 1958)

Spring and autumn 1956, rock garden and alpine plants, low border, wall and wild plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Sky-Cleft Gardens, 1956)

Spring and autumn 1957, hardy rock garden and alpine plants, wildflowers, low perennials, herbs - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Sky-Cleft Gardens, 1957)

Spring and autumn 1958, hardy rock garden and alpine plants, perennials, wildflowers, ferns, herbs - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Sky-Cleft Gardens, 1958)

Spring and fall - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Ruth Hardy's Red Cedar Wildflower Nursery, 1952)

Spring and fall 1953, 38th year Hallauer's : hardy herbaceous and alpine plants, dwarf shrubs and bulbs - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (N.A. Hallauer, 1953)

Spring and fall 1954, 39th year Hallauer's : hardy herbaceous and alpine plants, dwarf shrubs and bulbs - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (N.A. Hallauer, 1954)

Spring plant guide and catalog 1954 : 26th year, 1928, 1954 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rocknoll Nursery, 1954)

Spring plant guide and catalog : 25th year, 1928, 1953 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rocknoll Nursery, 1953)

Die Stadtwaldungen von Zürich - Meister, Ulrich (Druckerei der Neuen Zürcher Zeitung, 1903)

The standard cyclopedia of horticulture; a discussion, for the amateur, and the professional and commercial grower, of the kinds, characteristics and methods of cultivation of the species of plants grown in the regions of the United States and Canada for ornament, for fancy, for fruit and for vegetables; with keys to the natural families and genera, descriptions of the horticultural capabilities of the states and provinces and dependent islands, and sketches of eminent horticulturists - Bailey, L. H. (Liberty Hyde), 1858 -1954 (The Macmillan Co.; [etc., etc.], 1916)

The standard cyclopedia of horticulture; a discussion, for the amateur, and the professional and commercial grower, of the kinds, characteristics and methods of cultivation of the species of plants grown in the regions of the United States and Canada for ornament, for fancy, for fruit and for vegetables; with keys to the natural families and genera, descriptions of the horticultural capabilities of the states and provinces and dependent islands, and sketches of eminent horticulturists - Bailey, L. H. (Liberty Hyde), 1858 -1954 (Macmillan, 1919)

Standardized plant names; a catalogue of approved scientific and common names of plants in American commerce - Olmsted, Frederick Law, 1870 -1957 (1923)

Stansfield's Catalogue of Hardy Herbaceous and Alpine Plants, Ferns and Lycapods : grown at Vale Gardens, Todmorden - Stansfield, Abraham. (1858)

Station bulletin - New Hampshire Agricultural Experiment Station. (Agricultural Experiment Station, University of New Hampshire, 1948)

Status review of Aquilegia brevistyla, U.S.D.A. Forest Service, Region 1 ; Lewis & Clark National Forest, Montana - Montana Natural Heritage Program. (Montana Natural Heritage Program, 1992)

Status review of Aquilegia brevistyla, U.S.D.A. Forest Service, Region 1, Lewis & Clark National Forest, Montana - Montana Natural Heritage Program. (Montana Natural Heritage Program, 1992)

Status review of Botrychium minganense, U.S.D.A. Forest Service, Region 1, Lolo National Forest - Montana Natural Heritage Program. (Montana Natural Heritage Program, 1992)

Status review of Mertensia bella, U.S.D.A. Forest Service, Region 1, Lolo National Forest, Montana - Montana Natural Heritage Program. (Montana Natural Heritage Program, 1991)

Status review update of Goodyera repens, Lewis and Clark National Forest, Montana - Montana Natural Heritage Program. (Montana Natural Heritage Program, 1992)

Strasburger's Text-book of botany - Strasburger, Eduard, 1844 -1912 (Macmillan, 1921)

The structure & development of the mosses and ferns (Archegoniatae) (Macmillan, 1895)

The structure and development of mosses and ferns (Archegoniatae) (Macmillan, 1905)

The structure and development of mosses and ferns (Archegoniatae) (Macmillan, 1895)

The structure and development of mosses and ferns (Archegoniatae) (Macmillan, 1918)

The structure and development of mosses and ferns (Archegoniatae) (Macmillan, 1928)

The student's flora of the British islands - Hooker, Joseph Dalton, 1817 -1911 (Macmillan, 1884)

A student's text-book of botany - Vines, Sydney Howard, 1849 -1934 (Sonnenschein, 1894)

A student's text-book of botany - Vines, Sydney Howard, 1849 -1934 (Swan Sonnenschein, 1895)

A student's text-book of botany - Vines, Sydney Howard, 1849 -1934 (S. Sonnenschein & co, 1896)

A students' text-book of botany - Vines, Sydney Howard, 1849 -1934 (S. Sonnenschein, 1895)

Studien über südostasiatische Dipteren - Meijere, J. C. H. de (Johannes Cornelis Hendrik) 1866 -1947 (s.n, 1911)

Studies on the plant cell. pt.1-8 - Davis, Bradley M. (Bradley Moore), 1871 -1957 (Ginn and Co, 1904)

The study of the biology of ferns by the collodion method. : for advanced and collegiate students - Atkinson, George Francis, 1854 -1918 (Macmillan and Co, 1894)

Sub-alpine plants : or, flowers of the Swiss woods and meadows - Thompson, Harold Stuart, 1870 -1940 (G. Routledge & Sons, 1912)

Sub-alpine plants : or, Flowers of the Swiss woods and meadows - Thompson, Harold Stuart, 1870 -1940 (Routledge, 1912)

A summary of comital plant-distribution, additional to that detailed in topographical botany; being an enumeration of the new county records, published by the Botanical Record Club, 1873-1878. To which are added those appearing in the Botanical Exchange Club Reports, 1867-1877 - Lees, Frederic Arnold, 1847 -1921 (Printed by West, Newman, 1878)

A summary of the new ferns which have been discovered or described since 1874 - Baker, John Gilbert, 1834 -1920 (Clarendon Press, 1892)

A summary of the new ferns which have been discovered or described since 1874 - Baker, John Gilbert, 1834 -1920 (Clarendon, 1892)

Die Sumpf- und Wasserpflanzen : ihre Beschreibung, Kultur und Verwendung - Mönkemeyer, Wilhelm, 1862 -1938 (Paul Parey, 1897)

A supplement to Baines' Flora of Yorkshire, with a map : part first, the flowering plants and ferns by John Gilbert Baker : part second, the mosses of the county by John Nowell - Baker, John Gilbert, 1834 -1920 (William Pamplin, 1854)

Supplement to The ferns of southern India and British India : containing a revised list of all the ferms of India, Ceylon, Birmah, and the Malay peninsula and 45 plates of hitherto unfigured species - Beddome, R. H. (Richard Henry), 1830 -1911 (printed by Gantz Brothers, 1876)

Supplementum primum Prodromi florae Novae Hollandiae: exhibens proteaceas novas quas in Australasia legerund, DD. Baxter, Caley, Cunningham, Freser et Sieber - Brown, Robert, 1773 -1858 (Typis R. Taylor, 1830)

Supplementum tentaminis pteridographiae, continens genera et species ordinum dictorum marattiaceae, ophioglossaceae, osmundaceae, schizaeaceae et lygodiaceae - Presl, K. B. 1794 -1852 (E typographia Cass. reg. Aulica filiorum Amadei Haase, 1849)

Surplus August and September bargains, 1933 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.C. Robbins, 1933)

Surplus bargains for July and August acceptance - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Gardens of the Blue Ridge, 1937)

Surplus Depression special - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.C. Robbins, 1933)

A survey and record of Woolwich and West Kent containing descriptions and records, brought up-to-date, of geology, botany, zoology, archaeology and industries of the district, with a brief photographic commentary, in commemoration of the 12th Annual Congress, 1907, of the South Eastern Union of Scientific Societies - Grinling, C. H. (Labour Representation Print. Co, 1909)

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.], 1910)

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.], 1918)

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

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 florae Siculae; seu, Vascularium plantarum Siciliam sponte incolentium enumeratio - Nicotra, Leopoldo, 1846 -1940 (1893)

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, 1897)

Sylloge fungorum omnium hucusque cognitorum - Saccardo, P. A. (Pier Andrea), 1845 -1920 (sumptibus auctoris, 1905)

Sylloge fungorum omnium hucusque cognitorum - Saccardo, P. A. (Pier Andrea), 1845 -1920 (sumptibus auctoris, 1912)

Sylloge fungorum omnium hucusque cognitorum - Saccardo, P. A. (Pier Andrea), 1845 -1920 (sumptibus auctoris, 1925)

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, 1978)

Syllogeus - National Museum of Natural Sciences (Canada) (National Museum of Natural Sciences, 1979)

Syllogeus - National Museum of Natural Sciences (Canada) (National Museum of Natural Sciences, 1980)

Syllogeus - National Museum of Natural Sciences (Canada) (National Museum of Natural Sciences, 1981)

Syllogeus - National Museum of Natural Sciences (Canada) (National Museum of Natural Sciences, 1983)

Syllogeus - National Museum of Natural Sciences (Canada) (National Museum of Natural Sciences, 1989)

Syllogeus - National Museum of Natural Sciences (Canada) (National Museum of Natural Sciences, 1991)

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, 1923)

Symbolae sinicae :botanische Ergebnisse der Expedition der Akademie der Wissenschaften in Wein nach Südwest-China, 1914-1918 - Handel-Mazzetti, Heinrich, Freiherr von, 1882 -1940 (J. Springer, 1926)

Synonymia botanica locupletissima generum, sectionum vel subgenerum ad finem anni 1858 promulgatorum : In forma conspectus systematici totius regni vegetabilis schemati Endlicheriano adaptati - Pfeiffer, Louis (Ludwig Georg Karl), 1805 -1877 (Sumptibus T. Fischer, 1870)

Synonymiae botanicae 1870 editae supplementum primum - Pfeiffer, Louis (Ludwig Georg Karl), 1805 -1877 (sumptibus T. Fischer, 1874)

Synopsis der deutschen und schweizer Flora - Koch, Wilhelm Daniel Joseph, 1771 -1849 (O. R. Reisland, 1892)

Synopsis der deutschen und schweizer Flora, enthaltend die genauer bekannten phanerogamischen Gewächse, so wie die cryptogamischen Gefäss-Pflanzen, welche in Deutschland, der Schweiz, in Preussen und Istrien wild wachsen und derjenigen ... nach dem DeCandollischen System geordnet, mit einer vorangehenden Uebersicht der Gattungen nach den Classen und Ordnungen des Linneischen Systemes - Koch, Wilhelm Daniel Joseph, 1771 -1849 (Gebhardt & Reisland, 1846)

Synopsis der mitteleuropaïschen flora - Graebner, Paul, 1871 -1933 (W. Engelmann, 1896)

Synopsis filicum Africae Australis, or, An enumeration of the South African ferns hitherto known - Pappe, Karl Wilhelm Ludwig, 1803 -1862 (S. Solomon, 1858)

Synopsis filicum; or, A synopsis of all known ferns, including the Osmundaceae, Schizaeaceae, Marattiaceae, and Ophioglossaceae (chiefly derived from the Kew herbarium) Accompanied by figures representing the essential characters of each genus - Baker, John Gilbert, 1834 -1920 (R. Hardwicke, 1874)