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

Miami University - Algae
Catalog #: 000198171
s.n.
Conferva pachyderma Wille

Field Museum of Natural History
Catalog #: C0172664F
V. Wittrock #s.n. 03 July 1881
Microspora wittrockii (Wille) Lagerheim
Sweden, Uppland (Upl), Rydboholm par. Östra Ryd

Field Museum of Natural History
Catalog #: C0172881F
V. Wittrock #s.n. 03 July 1881
Microspora wittrockii (Wille) Lagerheim
Sweden, Uppland (Upl), Rydboholm par. Östra Ryd