Thomson, Lich. Wiscon. Exs.
J.W. Thomson [1 - 96]

USDA United States National Fungus Collections
Catalog #: BPI 1033153
Thomson J.W. Jr. #s.n. 21 June 1946
Physcia orbicularis H. Magn.
United States, Wisconsin, Marathon, 2 mi NE of Granite Heights