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

Miami University - Algae
Catalog #: 000197808
T. O. B. N. Krok #s.n. 00 August 1868
Aegagropila biformis Wittrock
Sweden, Närke (Nrk), in mari Bottnico ad Svartholmen prope Näske in Angermannia

Field Museum of Natural History
Catalog #: C0500000F
T.O.B.N. Krok #s.n. 28 February 1878
Aegagropila biformis Wittrock
Sweden, in mari Bottnico ad Svartholmen prope Näske in Angermannia