Coneflower trail.
Identified by J. Davidson
Picture by A. Balter
common greenshield ?
On fallen hemlock twigs.
Specimen
These are not carpeting the rocks where I live. You can find them, but they're not as frequent as rock greenshield which is, I swear everywhere. This one was on a large boulder on the hill above Tar Kiln Run, in amongst some other lichens. Not-a-wetland, mixed hardwood forest. Sunny slope, not markedly east or west facing.
On Maple