Parmelia squarrosa

Parmelia squarrosa

Parmelia squarrosa 1
On Arctostaphylos. From Oregon Dunes National Recreation Area, coastal Oregon.

Parmelia squarrosa 2
On hardwood bark. From central Massachusettes.

Parmelia squarrosa 3
On Arctostaphylos. From Oregon Dunes National Recreation Area, coastal Oregon.

Parmelia squarrosa 4
On Alnus. From the north coast of California.

Parmelia squarrosa 5
(detail showing isidia)

Parmelia squarrosa 6
On hardwood bark. From central Massachusetts.

Parmelia squarrosa 7
On hardwood bark. From Acadia National Park, Maine.

Parmelia squarrosa 8
On Acer saccharum. From the north shore of Lake Superior, southern Ontario.

Parmelia squarrosa 9
On hardwood bark. From Acadia National Park, Maine.