Pertusaria xanthodes

Pertusaria xanthodes 1
On Quercus. From Martha's Vineyard, Massachusetts.

Pertusaria xanthodes 2
On bark. From Big Bend National Park, southern Texas.

Pertusaria xanthodes 3
On old Quercus. From coastal San Luis Obispo County, California.

Pertusaria xanthodes 4
On old Quercus. From coastal San Luis Obispo County, California.

Pertusaria xanthodes 5
On old Quercus. From coastal San Luis Obispo County, California.

Pertusaria xanthodes 6
On Populus bark. From coastal Marin County, California.

Pertusaria xanthodes 7
On Populus bark. From coastal Marin County, California.

Pertusaria xanthodes 8
On Populus bark. From coastal Marin County, California.