Wittrock & Nordstedt, Algae Aquae Dulcis Exs.
Wittrock, V.B.; Nordstedt, C.F.O. [1 - 1200]

Miami University - Algae
Catalog #: 000198096
V. Wittrock #s.n. 22 June 1879
Spirogyra porticalis (O.F.Müller) Dumortier
Sweden, Gotland (Gtl), Visby