Altitudinal distribution: submediterranean/colline belt (potential vegetation: mixed deciduous forests dominated by Quercus and Carpinus)
Note: a species with a thin, blackish brown, rimose to areolate thallus forming patches of c. 1 cm. in diam., surrounded by a subdentritic prothallus and with a carbonised basal layer, ascomata immersed in verrucae (to 0.25 mm in diam.), involucrellum adpressed to the perithecial wall in the upper part, somewhat spreading below and fusing with the basal thalline layer, ascospores oblong to ellipsoid (to 25 µm long); on roof tiles, only known from the type locality at the base of the Western Alps (France).
