Pertusaria amara

Pertusaria amara

Pertusaria amara 1
On Thuja bark. From the North Shore of Lake Superior, Ontario.

Pertusaria amara 2
On bark. From ?

Pertusaria amara 3
On dead Thuja bark. From northern interior British Columbia.

Pertusaria amara 4
On bark. From southern Louisiana.

Pertusaria amara 5
On bark. From western Washington.

Pertusaria amara 6
On bark. From the Channel Islands, southern California.