Acarospora thelococcoides

Acarospora thelococcoides is a pruinose (dusty whitish) verruculose (warty) crustose lichen that grows in patches up to 10 cm across that grows on soil (terricolous), especially soils made from decomposed granite.: 220  It grows from San Benito, California to Baja California, and inland to 930 metres (3,050 ft). Each roundish areole becomes more pruinose toward the top and typically has a single round apothecium that is immersed with a dark brown disc, so as to appear like a collection of white rings. This appearance gives it the common name, soil eyes lichen.: 220  The asci are saccate, with variable numbers of spherical ascospores. Lichen spot tests are all negative, and it is UV-. It is an indicator of undisturbed soil habitats....read more on Wikipedia.