Tilden, Amer. Algae
Tilden, J.E. [1-650]

Michigan State University Algae
Catalog #: MSC0183733
Josephine E. Tilden #s.n. 29 August 1901
Nostoc verrucosum Vaucher ex Bornet & Flahault
United States, Minnesota, Saint Louis, Lester river, Lester park, Duluth

Miami University - Algae
Catalog #: 000185085
Josephine E. Tilden #s.n. 29 August 1901
Nostoc verrucosum Vaucher ex Bornet & Flahault
United States, Minnesota, Saint Louis, Lester river, Lester park, Duluth