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

Drexel University, Academy of Natural Sciences - Algae
Catalog #: PH00348296
f20a4f18-b6b3-441c-9595-c951fcf6815a
W. Migula #296 11 August 1930
Spirogyra porticalis (O.F.M
Germany, Eisenach, Thuringen

Miami University - Algae
Catalog #: 000163850
W. Migula #s.n. 11 August 1930
Spirogyra porticalis (O.F.Müller) Dumortier
Germany, Eisenach, Thuringen

University of Michigan
Catalog #: 736719
W. Migula #s.n. 11 August 1930
Spirogyra porticalis (O.F.Müller) Dumortier
Germany, Eisenach, Thuringen

Michigan State University Algae
Catalog #: MSC0184797
W. Migula #s.n. 11 August 1930
Spirogyra porticalis (O.F.Müller) Dumortier
Germany, Knopfelsteiche, Eisenach