Migula, Krypt. Germ., Austr. Helv. Exs. [Algen]
Migula, E.F.A.W. [1 - 300]

Drexel University, Academy of Natural Sciences
Catalog #: PH00348599
W. Migula #20 30 August 1902
Bertholdia orbicularis
Germany, In Wiesengraben bei Ruppurr unweit Karlsruhe (Baden)

University Herbarium, University of California, Berkeley
Catalog #: UC2037520
W. Migula #s.n. 30 August 1902
Chaetopeltis orbicularis Berthold
Germany, Baden-Württemberg, Karlsruhe, Karlsruhe

Miami University
Catalog #: 000162607
W. Migula #s.n. 30 August 1902
Bertholdia orbicularis
Germany, An untergetauchten Blattern von Nuphar luteum in Wiesengraben bei Ruppurr unweit Karlsruhe (Baden)

Michigan State University
Catalog #: MSC0181364
W. Migula #s.n. 30 August 1902
Bertholdia orbicularis
Germany, Karlsruhe

Drexel University, Academy of Natural Sciences
Catalog #: PH00148048
W. Migula #s.n. 30 August 1902
Chaetopeltis Berthold, 1878
Germany, bei Ruppurr unweit Karlsruhe, Baden