Hauck & Richter, Phykoth. Univ.
Hauck, F.; Richter, P.G. [1 - 300]

University Herbarium, University of California, Berkeley
Catalog #: UC763937
P. Richter #s.n. 27 April 1890
Spirogyra communis (Hassall) Kützing
Germany, Sachsen, Leipzig, Eilenburg