Arthonia caesia (Flotow) Korber Common on decorticate logs and on the lower trunks and limbs of a variety of trees including Acer saccharum (#1622).
Candelaria concolor (Dickson) Stein Common on the pads of prickly pear cactus (Opuntia humifusa (#1855)), rusted metal, weathered asphalt, wood, granite, concrete, dolomite, calcareous gravel, decorticate logs and on the trunks and lower limbs of a variety of trees including Maclura pomifera (#1634) and Ulmus americana (#1630).
Hale Common on decorticate logs and on the lower limbs and trunks of Carya ovata, Crataegus mollis (#1618), Fraxinus pennsylvanica var.
Parmelia sulcata Taylor Common on decorticate logs and wooden fence posts, and on the trunks and limbs of a variety of trees including Gleditsia triacanthos (#1624).
KEYA PAHA County: Niobrara Valley Preserve, on shaded decorticate branch of Juniperus virginiana, Ladd 16475.
This is a common but often overlooked lignicolous lichen that blends in with the decorticate logs on which it typically grows.
BROWN County: Niobrara Valley Preserve, on decorticate Populus log in open woodland, Ladd 16362.