Most likely a southern, but I wasn't able to check the belly scales.
OLYMPUS DIGITAL CAMERA
Irregular one on right, white spots on lower surface, grayish brown upper surface
on Big Leaf Maple trunk
Or is this more tree pelt lichen....
Grayish brown upper surface, curled up margins - some with soredia on margins, light lower surface with large white rhizines and cyphellae (?) on trunk of Big Leaf Maple
"The only pelt lichen with soredia" from Macrolichens class....
Growing in mixed Redwood/Douglas Fir forest.
golfball sized. Growing on ground in Redwood/Douglas Fir forest.