Lecanora chlarotera 1
On Pseudotsuga. From Carson National Forest, New Mexico.

Lecanora chlarotera 2 (formerly called Lecanora rugosella)
(with Pertusaria macounii)
On Acer saccharum. From the North Shore of Lake Superior, Ontario.

Lecanora chlarotera 3 (formerly called Lecanora rugosella)
On Populus bark. From Mt. Fernie Provincial Park, British Columbia.