Sclerophyton perithecioideum

About

Sclerophyton perithecioideum is a corticolous (bark-dwelling) lichen in the family Opegraphaceae. It is a small crustose lichen that forms pale grayish-white crusts on tree bark in lowland primary (old-growth) rainforest in the Brazilian Amazon. The species is distinguished by clusters of small, dark fruiting structures set within raised, pale, pustule-like mounds on the thallus, and by the presence of psoromic acid. It was formally described in 2022 from material collected near Manaus in Amazonas State, and it remains known only from two low-elevation localities in northern Brazil.

Summary from Wikipedia