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

Michigan State University
Catalog #: MSC0183736
Josephine E. Tilden #s.n. 27 September 1899
Nostoc verrucosum Vaucher ex Bornet & Flahault
United States, Wisconsin, Saint Croix, Burkhardt

Miami University
Catalog #: 000179671
Josephine E. Tilden #s.n. 27 September 1899
Nostoc verrucosum Vaucher ex Bornet & Flahault
United States, Wisconsin, Saint Croix, Burkhardt