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

Sylloge generum specierumque cryptogamarum, quas in variis operibus descriptas iconibusque illustratas, nunc ad diagnosim reductas, nonnullasque novas interjectas - Montagne, Jean François Camille, 1784 -1866 (J.-B. Baillire, 1856)

Symbolae mycologicae. Beiträge zur Kenntniss der Rheinischen Pilze - Fuckel, Leopold (J. Niedner, 1869)

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)

Symposium on Marine Microbiology; [papers] - United States. Office of Naval Research. (Thomas, 1963)

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)

Synopsis methodica lichenum omnium hucusque cognitorum praemissa introductione lingue gallica tractata - Nylander, William, 1822 -1899 (Ex Typis L. Martinet, 1858)

Synopsis mycologiae Venetae secundum matrices - Cuboni, Giuseppe, 1852 -1920 (Typis Seminarii, 1886)

Systema mycologicum : sistens fungorum ordines, genera et species, huc usque cognitas, quas ad normam methodi naturalis determinavit - Fries, Elias, 1794 -1878 (Ex Officina Berlingiana, 1821)

Systematic arrangement of Australian Fungi - McAlpine, Daniel, 1848 -1932 (R.S. Brain, Govt. Printer, 1895)