Mischoblastia

Mischoblastia is a genus of lichen-forming fungi in the family Physciaceae. It was first established as a separate genus in 1852, but was later treated as part of Rinodina. Molecular studies published in 2021 showed that Mischoblastia forms its own distinct evolutionary lineage within the Physciaceae. The genus is characterised by distinctive ascospores with strongly thickened walls that create an almost triangular internal cavity during development, and by species that occur mainly on rocks across several continents, including North America, Europe, Asia, and Africa. The diversity in East Asia is probably underestimated because of limited sampling....read more on Wikipedia.