Arthothelium macounii (Merr.) Noble, Ined.

British Columbia: Prevost island. Elev. 30 m
48 50 N, 123 22 W
On quercus garryana with porina carpinea and caloplaca atrosanguinia. conglomerate outcrop among farm meadow.

J. Coursley s.n., june 5, 1974
With W. J. Noble
UBC

Arthothelium macounii (Merr.) Noble, Ined.

British Columbia: Glenthorne point, prevost island. Elev. 10 m
48 49 N, 123 23 W
On taxus brevifolia with arthothelium spectabile and nephroma laevigatum. conglomerate cliffs above ocean.

J. Coursley s.n., june 5, 1974
With W. J. Noble
UBC

Arthothelium macounii (Merr.) W. Noble

British Columbia: Prevost Island: Glenthorne Pt.; Co:. Elev. 10m
48° 49' N, 123° 23' W
Shaded roadcut and oceanside rocks, juniper, and yew, on Taxus brevifolia. : ;.

W. J. Noble s.n., Jun 05, 1974
With J. Coursley
UBC