Umbilicaria cylindria (L.) DeL. ex Duby

British Columbia: Taku river: sinwa mtn.: limestone (ha). open tundra (semi-continental) Elev. 1420-1520 m
58 52'N, 133 20'W
Saxicolous, solitary siliceous boulder.

Trevor Goward s.n., july 11, 1982
With A. & O. Ceska
UBC