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

Drexel University, Academy of Natural Sciences
Catalog #: PH00348298
W. Migula #295 29 September 1931
Pinnularia acrosphaeria W.Smith
Germany, Marksuhl, Thuringen

Miami University
Catalog #: 000162216
W. Migula #s.n. 29 September 1931
Pinnularia acrosphaeria W.Smith
Germany, Marksuhl, Thuringen