Sylloge algarum omnium hucusque cognitarum - Boston Society of Natural History. (Sumptibus auctoris, 1903)

Sylloge algarum omnium hucusque cognitarum - Boston Society of Natural History. (Sumptibus auctoris, 1905)

Sylloge algarum omnium hucusque cognitarum - Boston Society of Natural History. (Sumptibus auctoris, 1907)

Sylloge algarum omnium hucusque cognitarum - Boston Society of Natural History. (Sumptibus auctoris, 1889)

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

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)

Sylloge plantarum novarum itemque minus cognitarum : a praestantissimis botanicis adhuc viventibus collecta et a Societate regia botanica Ratisbonensi edita - Regensburgische Botanische Gesellschaft. (Typis viduae C.E. Brenck, 1828)

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 Diatomearum, oder, Versuch einer systematischen Zusammenstellung der Diatomeen - Kützing, Friedrich Traugott, 1807 -1893 (s.n, 1834)

Synopsis of British seaweeds - Harvey, William H. (William Henry), 1811 -1866 (L. Reeve, 1857)