Plectocarpon stereocaulicola (Roccellaceae, Ascomycota), a new lichenicolous fungus from Bolivia

A new gall-inducing lichenicolous fungus, Plectocarpon stereocaulicola Kukwa, Etayo and Flakus, is described from Bolivia from the thalli of Stereocaulon sp. The new species is characterized by black, epruinose rounded ascomata with a carbonized surface and a thalline pseudo-margin, as well as a non-carbonized, light brown sterile stromatic tissue in the lower part and 3-septate ascospores becoming brown and ornamented when mature.