Phaeophyscia pusilloides (Zahlbr.) Essl.
Fungi | Ascomycota | Lecanoromycetes | Caliciales | Physciaceae | Phaeophyscia | Phaeophyscia pusilloides
Ulmus americana
Cap Sauers Holdings Nature Preserve: near Palos Park, along Route 83 about 1 mi. W of Willow Springs Rd., then 1/8mi S