Thomson, Lich. Wiscon. Exs.J.W. Thomson [1 - 96]
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USDA United States National Fungus Collections
Catalog #: BPI 1033135
Thomson J.W. Jr. #s.n. 08 March 1946
Physcia grisea (Lam.) Zahlbr.
United States, Wisconsin, Eau Claire, South of Eau Claire
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