Cummings, Williams & Seymour: Lich. Bor.-Amer.
Francis W. Pennell [1-280]

Oregon State University Herbarium - Lichens
Catalog #: 99728
b97aea86-0304-4a63-a3c3-05cc6670a312
B. Fink #N. A. L. 193 28 November 1895
Lecanora calcarea
United States, Iowa, Fayette;