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

Miami University - Algae
Catalog #: 000197949
V. Wittrock #s.n. 09 August 1878
Chlorococcum botryoides Rabenhorst
Sweden, Uppland (Upl), in Lassby backar prope Upsaliam in stagnis

University of Michigan
Catalog #: 731226
Veit B. Wittrock #s.n. 09 August 1878
Protosiphon botryoides (Kützing) Klebs
Sweden, Bohuslän (Bh), Lassby, near Uppsala