Braun, Rabenhorst & Stizenberger, Characeen Eur.
Braun, A.C.H.; Rabenhorst, G.L.; Stizenberger, E. [1 - 121]

Field Museum of Natural History
Catalog #: C0536466F
O. Nordstedt #s.n. 00 September 1872
Nitella flexilis var. crassa A.Braun
Sweden, Västra Götalands län, To Aspa in Lake Vättern [ad Aspa in lacu "Wettern"]

The New York Botanical Garden
Catalog #: 2021507
Otto Nordstedt s.n. 00 September 1872
Nitella flexilis variety crassa A. Braun
, Nericiae ad Aspa in lacu Wettern inter Nit translucentem

The New York Botanical Garden
Catalog #: 2021510
Otto Nordstedt s.n. 00 September 1872
Nitella flexilis variety crassa A. Braun
, Nericiae ad Aspa in lacu Wettern inter Nit translucentem