Rhizoplaca parilis

Rhizoplaca parilis is a crustose lichen in the family Lecanoraceae. Described in 2011, it was separated from the Rhizoplaca melanophthalma complex after molecular studies showed it forms an independent evolutionary lineage. It typically forms tightly attached, rosette-shaped growths with radiating lobes and a yellow-green surface, often featuring a dark, glossy centre when fruiting bodies are present. R. parilis occurs on exposed siliceous rock from about 2,000 metres up to 3,500 metres in habitats ranging from pinyon–juniper woodland to alpine tundra across North America, Europe, Asia and South America....read more on Wikipedia.