Sylloge fungorum omnium hucusque cognitorum - Saccardo, P. A. (Pier Andrea), 1845 -1920 (sumptibus auctoris, 1897)

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Syllogeus - National Museum of Natural Sciences (Canada) (National Museum of Natural Sciences, 1984)

Syllogeus - National Museum of Natural Sciences (Canada) (National Museum of Natural Sciences, 1987)

Syllogeus - National Museum of Natural Sciences (Canada) (National Museum of Natural Sciences, 1992)

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)

A synopsis of the British mosses, containing descriptions of all the genera and species, (with localities of the rarer ones) found in Great Britain and Ireland, based upon Wilson's "Bryologia Britannica," Schimper's "Synopsis," etc - Hobkirk, Charles Codrington Pressick, 1837 -1902 (L. Reeve & Co, 1884)

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)

Systematic catalogue of plants of Wisconsin and Minnesota - Owen, David Dale, 1807 -1860 (Lippincott, Grambo, 1852)

Systematic lists illustrative of the Flora, Fauna, Palaeontology, and Archaeology of the North of Ireland - Stewart, Samuel Alexander, 1826 -1910 (Printed for the Club, 1870)

Systematisches Verzeichniss der in Deutschland lebenden Binnen-Mollusken - Kreglinger, Carl, (C.W. Kreidel's Verlag, 1870)

Telopea: Journal of plant systematics - National Herbarium of New South Wales, (Royal Botanic Garden Sydney, 2017)

Tentamen florae Germanicae; continens enumerationem plantarum in Germania sponte nascentium - Roth, Albrecht Wilhelm, 1757 -1834 (In Bibliopolio I.G. Mlleriano, 1788)

Természetrajzi Füzetek kiadja a Magyar nemzeti Muzeum - Magyar Nemzeti Múzeum. (Franklin-társulat nyomdája [etc.], 1882)

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Theoretische Anfangsgründe der Botanik, oder, Erklärung der Grundsätze der natürlichen Classeneintheilung und der Kunst die Gewächse zu beschreiben und zu studieren - Candolle, Augustin Pyramus de, 1778 -1841 (Drell, 1815)

Tijdschrift voor entomologie - Nederlandse Entomologische Vereniging (Nederlandse Entomologische Vereniging, 1951)

Tijdschrift voor natuurlijke geschiedenis en physiologie (1841)

Tijdschrift voor natuurlijke geschiedenis en physiologie (1842)

Till de svenska alfvarväxternas ekologi ... - Witte, Hernfrid, 1877 - (Almqvist & Wiksells boktryckeri-a.-b, 1906)

Torreya - Torrey Botanical Club. (Torrey Botanical Club, 1903)

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Torreya - Torrey Botanical Club. (Torrey Botanical Club, 1914)

Torreya - Torrey Botanical Club. (Torrey Botanical Club, 1916)

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Tracts relative to botany, translated from different languages illustrated by nine copper-plates, and occasional remarks - Hedwig, Johannes, 1730 -1799 (Printed and sold by Phillips and Fardon, 1805)

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Transactions - Ottawa Field-Naturalists' Club - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1885)

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Ueberblick der Flora arctica - Martens, Eduard von, 1831 -1904 (Druck von J.H. Demmler, 1859)

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Die Vegetation der Erde :Sammlung pflanzengeographischer Monographien - Engler, Adolf, 1844 -1930 (W. Engelmann, 1901)

Die Vegetation der Erde :Sammlung pflanzengeographischer Monographien - Engler, Adolf, 1844 -1930 (W. Engelmann, 1902)