Placynthium pannariellum (Nyl.) H. Magn.
Remarks: ID certainty: certain

British Columbia: Ray's Mineral Spring. Placid Lake trail, 34.8 miles N of the entrance of Wells Gray Provincial Park, British Columbia. S end of Clearwater Lake. Elev. 2500 ft.
52.0589981° N, -120.1549988° W
Datum: WGS84.
Mixed Populus and Betula forest. Limey travertine substrate in a small stream. On schist. At edge of lake on schist. Det: M. Schultz, 12/2009. Substrate: Saxicolous.

Roger Rosentreter 6336, Sep 28, 1989
RR, Barcode: SRP-L-0009496