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

Miami University - Algae
Catalog #: 000210826
V. Wittrock #s.n. 18 August 1882
Penium spirostriolatum J.Barker
Sweden, Blekinge (Bl), ad Trofta par. Hoby Blekingiæ

University Herbarium, University of California, Berkeley
Catalog #: UC431533
Veit Wittrock #s.n. 18 August 1882
Penium spirostriolatum J.Barker
Sweden, Gotland (Gtl), Blekinge, Ad Trofta par. Hoby Blekingiæ