On bigtooth aspen branch
maculate lobe tips, pustulose over older portions of thallus, underside black with small rhizines
growing on cut decorticated stump in sunny exposed habitat
small brownish growths in association with the bleached part of the thallus (zoom in to see them)
on thin soil in sunny habitat
on trunk of black oak
UV+ yellow
Black spots on Flavoparmelia
On tombstone from late 1800’s
No lichen substances. White medulla. Squarrose rhizines.
On fallen oak branch
On tombstone. Lobes convex, maculate, with small apothecia.
Reticulate upper surface, rhizines to the margin, growing at base of northern red oak adjacent to a power line cut