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

Drexel University, Academy of Natural Sciences
Catalog #: PH00348504
W. Migula #105 00 January 1905
Nitzschia clausii Hantzsch
Germany, Karlsruhe, Baden

Miami University
Catalog #: 000162119
W. Migula #s.n. 00 January 1905
Nitzschia clausii Hantzsch
Germany, Karlsruhe, Baden

Michigan State University
Catalog #: MSC0183659
W. Migula #s.n. 00 January 1905
Nitzschia clausii Hantzsch
Germany, Karlsruhe, Baden