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

Miami University - Algae
Catalog #: 000211262
s.n.
Microthamnion kuetzingianum Nägeli ex Kützing

University Herbarium, University of California, Berkeley
Catalog #: UC759369
A. Hansgirg #s.n. 02 April 1886
Microthamnion kuetzingianum Nägeli ex Kützing
Germany, Niedersachsen, Wittingen