Lithographa tesserata (DC.) Nyl.

British Columbia: Queen Charlotte Is.: Graham Island, Mercer Lake; ridge on NE of lake; Co:. Elev. 180-210m
53° 34' N, 132° 52' W
Terraced fens, with Pinus contorta and Tsuga mertensiana, on stone in open fen. : ; TLC: 833-18: norstictic.

I. M. Brodo s.n., Jul 21, 1988
UBC