Substrate: siliceous rocks, intermediate rocks (such as calciferous schists)
Altitudinal range: from the mesomediterranean belt (potential vegetation: evergreen broad-leaved forests dominated by Quercus ilex) to the submediterranean/colline belt (potential vegetation: mixed deciduous forests dominated by Quercus and Carpinus)
Note: a species with a thin, glaucous grey thallus of flat, angulose, to 0.9 mm wide areoles forming a crust of 1-2 cm in diam., numerous contiguous apothecia arising from the areoles (0.3-0.5 mm in diam.), the disc plane, orange, the margin thin and concolourous, 8-spored asci, and oblong-ellipsoid, polar-diblastic spores with a rather thin septum, measuring 10-14(-15) × 3.5-4 µm; known only from the type collection, on schist near Spotorno.
