Protoparmeliopsis muralis is a waxy looking, pale yellowish green crustose lichen that usually grows in rosettes radiating from a center filled with disc-like yellowish-tan fruiting bodies

Protoparmeliopsis muralis is a waxy looking, pale yellowish green crustose lichen that usually grows in rosettes

Protoparmeliopsis muralis is a waxy looking, pale yellowish green crustose lichen that usually grows in rosettes

Lecanora muralis (Protoparmeliopsis muralis) is a waxy-looking, pale yellowish-green crustose lichen

Protoparmeliopsis muralis is a waxy looking, pale yellowish green crustose lichen that usually grows in rosettes radiating

Protoparmeliopsis muralis is a waxy looking, pale yellowish green crustose lichen that usually grows in rosettes

Protoparmeliopsis muralis is a waxy looking, pale yellowish green crustose lichen that usually grows in rosettes

Protoparmeliopsis muralis is a waxy looking, pale yellowish green crustose lichen that usually grows in rosettes

Lecanora muralis, Protoparmeliopsis muralis, is a waxy looking, pale yellowish green crustose lichen. Berlin, Germany

Lecanora muralis, Protoparmeliopsis muralis, is a waxy looking, pale yellowish green crustose lichen. Berlin, Germany

Lecanora muralis, Protoparmeliopsis muralis, is a waxy looking, pale yellowish green crustose lichen. Berlin, Germany

Lecanora muralis, Protoparmeliopsis muralis, is a waxy looking, pale yellowish green crustose lichen. Berlin, Germany

Lichens growing on limestone