Chem right, apot not. P. hypothamn[?], looks like P. trachythallina-chem wrong, looks like P. copiosa- chem rong, ?P. excludens, looks like P. multipunctoides-chem wrong, P. lecanaria?-distrib wrong.
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B. Ryan
5117A
1979-08-11
1979-8-11
U.S.A., Missouri, Newton, Area around Alum Cove National Bridge.