Pulvinora

About

Pulvinora is a genus of saxicolous (rock-dwelling) lichens in the family Lecanoraceae. The genus was established in 2021 when DNA studies showed that two species then placed in Lecanora formed a distinct evolutionary lineage. Later work broadened the genus to include three additional species formerly treated in Lecanora, bringing the total number of recognised species to five. Species of Pulvinora form small cushions or thick, warty crusts on rock, and they produce black apothecia that start with raised rims but become strongly domed as they mature.

Summary from Wikipedia