Altitudinal distribution: montane belt (potential vegetation: deciduous forests dominated by Fagus sylvatica and closed coniferous forests with Picea abies)
Note: a species with a blackish-brown, rimose to verruculose-areolate thallus forming patches up to 5 cm in diam., a basal layer with dark maculae, immersed ascomata (to c. 0.2 mm in diam.), from above hardly discernable from thalline warts, an involucrellum adpressed to the perithecial wall reaching down to the base and fusing with the basal layer, and ellipsoid ascospores (to 25 µm long); on wood, rarely bark; rare throughout Central Europe, including the Eastern Alps (Austria).
