Collins, Holden & Setchell, Phycoth. Bor.-Amer.
Collins, F.S.; Holden, I.; Setchell, W.A. [1-2300]

Brown University - Algae
Catalog #: ABRU00004784
E. N. Transeau s.n. 20 May 1913
Spirogyra velata Nordstedt
United States, Illinois, Lerna, IL

University Herbarium, University of California, Berkeley
Catalog #: UC1827992
E. N. Transeau #s.n. 20 May 1913
Spirogyra velata Nordstedt
United States, Illinois, Coles, Lerna, Illinois

University of Michigan
Catalog #: 736755
E.N. Transeau #s.n. 20 May 1913
Spirogyra velata var. occidentalis Transeau
United States, Illinois, Coles, Lerna

University of Michigan
Catalog #: 736756
E.N. Transeau #s.n. 20 May 1913
Spirogyra velata var. occidentalis Transeau
United States, Illinois, Coles, Lerna

Michigan State University Algae
Catalog #: MSC0184792
E.N. Transeau #s.n. 20 May 1913
Spirogyra occidentalis (Transeau) Czurda
United States, Illinois, Coles, Lerna

Miami University - Algae
Catalog #: 000196630
E.N. Transeau #s.n.
Spirogyra occidentalis (Transeau) Czurda
United States, Illinois, Coles, Lerna

Yale University Herbarium
Catalog #: YU.095250
Edgar Nelson Transeau s.n. 20 May 1913
Spirogyra velata var. occidentalis Transeau
United States, Illinois, Lerna, IL