Montanelia predisjuncta

Montanelia predisjuncta is a species of saxicolous (rock-dwelling) foliose lichen in the family Parmeliaceae. The lichen forms small rosettes of narrow, olive-brown to dark brown lobes that grow tightly pressed against rock surfaces in mountainous areas. It was originally described from Japan and has since been recorded from China and Russia, though some genetic studies suggest it may not be distinct from the more widespread Montanelia disjuncta. The species is characterized by its lack of powdery or granular reproductive structures, the presence of irregular pale markings on its upper surface, and its production of perlatolic and stenosporonic acids....read more on Wikipedia.