Lichenostigma rupicolae

Lichenostigma rupicolae is a species of lichenicolous (lichen-dwelling) fungus in the family Phaeococcomycetaceae. It was described in 2010 from specimens of Pertusaria rupicola, its host species. This parasitic fungus appears as soot-black patches on its host lichen, consisting of microscopic cord-like structures that radiate outward from a centre and eventually form small black cushions containing spores. Found in Mediterranean Europe and Turkey, it appears to be strictly host-specific to the crustose lichen P. rupicola and causes no obvious damage beyond creating the characteristic blackened patches on the lichen's surface....read more on Wikipedia.