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

University Herbarium, University of California, Berkeley
Catalog #: UC278309
Richard Lees #s.n. 29 May 1897
Oedogonium cardiacum Wittrock ex Hirn
Canada, Ontario, White's Mill, Elgin county, Ontario Canada.

University Herbarium, University of California, Berkeley
Catalog #: UC763574
Richard Lees #s.n. 29 May 1897
Oedogonium cardiacum Wittrock ex Hirn
Canada, Ontario, White's Mill, Elgin county, Ontario Canada.

Michigan State University
Catalog #: MSC0183772
Richard Lees #s.n. 29 May 1897
Oedogonium cardiacum Wittrock ex Hirn
Canada, Ontario, White's Mill, Elgin

Miami University
Catalog #: 000179527
Richard Lees #s.n. 29 May 1897
Oedogonium cardiacum Wittrock ex Hirn
Canada, Ontario, White's Mill, Elgin