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

Drexel University, Academy of Natural Sciences - Algae
Catalog #: PH00348498
4e832306-e0de-4d51-822c-cdf6bc8cb81a
W. Migula #100 00 October 1905
Gomphonema constrictum Ehrenberg
Germany, Mosbach, Eisenach

Miami University - Algae
Catalog #: 000163148
W. Migula #s.n. 00 October 1905
Gomphonema constrictum Ehrenberg
Germany, Mosbach

Michigan State University Algae
Catalog #: MSC0182839
W. Migula #s.n. 00 October 1905
Gomphonema truncatum Ehrenberg
Germany, Mosbach, Eisenach