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

Drexel University, Academy of Natural Sciences
Catalog #: PH00348577
W. Migula #50 10 August 1902
Volvox aureus Ehrenberg
Germany, Karlsruhe

Miami University
Catalog #: 000164065
W. Migula #s.n. 10 August 1902
Volvox aureus Ehrenberg
Germany, Karlsruhe

University of Michigan
Catalog #: 735893
W. Migula #s.n. 10 August 1902
Volvox aureus Ehrenberg
Germany, Karlsruhe

Michigan State University
Catalog #: MSC0185255
W. Migula #s.n. 10 August 1902
Volvox aureus Ehrenberg
Germany, Karlsruhe Botanical Garden