Altitudinal range: from the submediterranean/colline belt (potential vegetation: mixed deciduous forests dominated by Quercus and Carpinus) to the montane belt (potential vegetation: deciduous forests dominated by Fagus sylvatica and closed coniferous forests with Picea abies)
Note: a species with a thin, yellowish white, marginally sublobate thallus forming patches of 2-5 cm in diam, with a well-developed upper cortex of angular cells, numerous, isolated, semi-immersed, black perithecia, oblong to oblong-clavate, 8-spored asci, and simple, hyaline, oblong ascospores measuring c. 8.6 × 6.8 µm, purported (in the description) to differ from Thrombium epigaeum in the obviously corticate thallus; only reported from the type locality near Bormio (Premadio), where it was collected on a wall of limestone; the type material is well worthy of further study.
