Picture taken near Santa Fe Montseny, Barceona, on the top of an isolate rock, schists, West exp., flat surgace, acid rock, 1.400 m. altitude, close the road.
Cosmopolite distribution, it was found jointly with Parmelia conspersa. Common in Catalonia, but mainly in upland areas.
Saxicolous, on acid rocks, foliose thallus brown to very dark brown, without apothecia, sometimes large, up to 15 cms in diameter, warty,very divided lobes not very long, Numerous and clumped isidia. Lower part black with black rhizina.