Eopyrenula leucoplaca (Wallr.) R.C. Harris

A lichen forming an inconspicuous but characteristic thin white crust with a trentepohlioid photobiont, black pycnidia and, more rarely, perithecia. It is distinguished in particular by brown, 1-septate macroconidia, ellipsoid to pear-shaped. It occurs epiphytically on the bark of various broad-leaved trees in woodland as well as outside forests (e.g. in parks and on solitary trees). In Central Europe it is currently a rarely reported species. Records from the Czech Republic have been increasing rapidly in recent years, but it is unclear whether the lichen is spreading or has simply been overlooked. The core of its occurrence lies in well-preserved lowland forests. At present, most records come from southern Moravia.

Ascomycota → Lecanoromycetes → incertae sedis Lecanoromycetes → Eopyrenula