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

leaf soil flower yellow nature rock wildlife grass autumn asphalt sand frost geology invertebrate tree wildflower amazing apothecia background beautiful beauty biology bodies center closeup color detail disc-like ecology ecosystem environment filled fungi fungus gray green grey grows grunge lichen lichens looking macro muralis mycology natural nature organism organisms outdoor outdoors pale yellowish green crustose pattern radiating rock rosette rosettes rough stone surface symbiotic textured white wild yellow