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

Field Museum of Natural History
Catalog #: C0530559F
V. Wittrock #s.n. 25 June 1877
Cladophora gracilis f. subflexuosa F.S.Collins
Sweden, Västra Götalands län, Fiskebäckskil