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

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

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

Smithsonian contributions to botany - Smithsonian Institution (Smithsonian Institution Press, 2023)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1879)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1929)

South African journal of science - South African Association for the Advancement of Science. (South African Association for the Advancement of Science, 1909)

The South American herpetofauna : its origin, evolution, and dispersal - Herpetologists League. (Museum of Natural History, University of Kansas, 1979)

The South Australian Naturalist - Field Naturalists' Society of South Australia (The Society, 1926)

The South Australian Naturalist - Field Naturalists' Society of South Australia (The Society, 1928)

Southwick Nurseries 1890 wholesale catalogue of North American perennials, new Tigridias, California bulbs, etc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Southwick Nurseries, 1890)

Späth-Buch, 1720-1920 : Geschichte und Erzeugnisse der Späth'schen Baumschule - L. Späth (Firm) (L. Späth, 1920)

Der Spaltöffnungsapparat im Lichte der Phylogenie. Ein Beitrag zur "phylogenetischen Pflanzenhistologie." - Porsch, Otto, 1875 - (G. Fischer, 1905)

Special spring edition of Dreer's wholesale price list : March - June 1929 - Henry A. Dreer (Firm) (Henry A. Dreer, 1929)

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, 1864)

Species muscorum frondosorum : descriptae et tabulis aeneis lxxvii coloratis illustratae - Hedwig, Johannes, 1730 -1799 (sumtu J. A. Barthii, 1801)

Species plantarum : exhibentes plantas rite cognitas ad genera relatas, cum diferentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas - Linné, Carl von, 1707 -1778 (Junk, 1753)

Species plantarum : exhibentes plantas rite cognitas ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas - Willdenow, Karl Ludwig, 1765 -1812 (impensis G.C. Nauk, 1810)

Species plantarum : exhibentes plantas rite cognitas ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas - Willdenow, Karl Ludwig, 1765 -1812 (impensis G.C. Nauk, 1797)

Specimen florae cryptogamae vallis Arpasch Carpatae Transilvani - Heufler, Ludwig, Freiherr von, called Heufler zu Rasen, 1817 -1885 (Typis Caes. Reg. Aulae et Imperii Typographiae, 1853)

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

Sport in Norway, and where to find it. Together with a short account of the vegetable productions of the country. To which is added, a list of the Alpine flora of the Dovre fjeld and of the Norwegian ferns, &c - Barnard, Mordaunt. (Chapman and Hall, 1864)

Sprawozdanie Komisyi Fizyograficznej (1891)

Sprawozdanie Komisyi Fizyograficznej (1893)

Spring 1900 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Storrs & Harrison Co, 1900)

Spring 1911 [catalogue] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Storrs and Harrison Co, 1911)

Spring 1915 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Storrs and Harrison Co, 1915)