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

Miami University - Algae
Catalog #: 000198015
V. Wittrock #s.n. 20 October 1878
Aphanothece saxicola v. aquatica Wittr.
Sweden, in piscina in Lassby backar prope Upsaliam

Michigan State University Algae
Catalog #: MSC0181255
Veit Wittrock #s.n. 20 October 1878
Aphanothece saxicola Nägeli
Sweden, Near Uppsala