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

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 fungorum Carolinae superioris : secundum observationes - Schwaegrichen, F. (Friedrich), 1775 -1853 (s.n, 1822)

Synopsis methodica fungorum : sistens enumerationem omnium huc vsque detectarum specierum, cum breuibus descriptionibus nec non synonymis et obseruationibus selectis - Persoon, C. H. (Christiaan Hendrik), 1755 -1837 (Apud Henricum Dieterich, 1801)

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

A synopsis of North American lichens Part II, comprising the lecideacei, and (in part) the graphidacei - Tuckerman, Edward, 1817 -1886 (s.n.], 1888)

Synopsis of the British Basidiomycetes : a descriptive catalogue of the drawings and specimens in the department of Botany, British Museum - Smith, Worthington George, 1835 -1917 (1908)

Synopsis of the British Basidiomycetes ; a descriptive catalogue of the drawings and specimens in the Department of botany, British museum - British Museum (Natural History). Department of Botany. (Printed by order of the Trustees of the British museum, 1908)

Synopsis of the flora of Colorado - Coulter, John Merle, 1851 -1928 (Govt. print. off, 1874)

A synopsis of the genera of American plants, according to the latest improvements on the Linnaean system: with the new genera of Michaux and others. Intended for the use of students in botany ... - Rich, Oliver O. (Printed by J. M. Carter, for J. Milligan, and Richards and Mallory, Georgetown, A. Finley, Philadelphia; [etc., etc.], 1814)

Synopsis plantarum in flora Gallica descriptarum - Candolle, Augustin Pyramus de, 1778 -1841 (Apud H. Agasse, 1806)

A synoptical compend of British botany ... arranged after the Linnean system - Galpine, John Kingston, 1806 (S. Bagster, 1820)

A synoptical compend of British botany ... arranged after the Linnean system - Galpine, John Kingston, 1806 (S. Bagster, 1834)

Synoptische Tabellen zur leichten Bestimmung der häuftligeren deutschen Pflanzen-Gattungen nach den Jussieuschen System; zum Gebrauche der Schulen und Zum Selbststudium - Zabel, Hermann, 1832 -1912 (H. Augustin, 1872)

Das System der Pilze. Durch Beschreibungen und Abbildungen erla¨utert - Bail, Theodor, 1833 -1922 (Verlag des Lithographischen Instituts der Rheinischen Friedrich-Wilhelms-Universitt und der Leopoldinisch-Carolinischen Academie der Naturforscher von Henry und Cohen, 1837)

Das system der pilze und schwämme. Ein versuch - Nees von Esenbeck, C. G. (Christian Gottfried), 1776 -1858 (In der Stahelschen buchhandlung, 1816)

A system of physiological botany - Keith, Patrick, 1769 -1840 (Printed for Baldwin, Cradock, and Joy, 1816)

A system of vegetables. According to their classes, orders, genera, species, with their characters and differences ... - Linné, Carl von, 1707 -1778 (Printed by J. Jackson for Leigh and Sotheby, 1783)

A system of vegetables, according to their classes, orders, genera, species, with their characters and differences ... - Linné, Carl von, 1707 -1778 (Printed by J. Jackson for Leigh and Sotheby, 1782)

Systema algarum - Agardh, C. A. (Carl Adolf), 1785 -1859 (Literis Berlingianis, 1824)

Systema characterum plantarum; seu, Dictionarium rerum botanicum, filio conscriptum, et ab ipso figuris illustratum - Pereboom, Cornelius. (1788)

Systema lichenum germaniae. Die Fletchen Deutschlands (insbesondere Schlesiens) Mikroskopische Geprüft, kritisch Gesichtet, charakterisch Beschrieben und systematisch Geordnet - Körber, Gustav Wilhelm, 1817 -1885 (Trewendt & Granier, 1855)

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)