Catapyrenium

About

Catapyrenium is a genus of squamulose lichens in the family Verrucariaceae. These small lichens grow as clusters of tiny scales (squamules that lie flat against rocks and soil, often in dry or disturbed habitats. The genus includes about 18 species found worldwide, particularly in arid and semi-arid regions where they help stabilize soil surfaces.

Summary from Wikipedia