Tetramelas thiopolizus (Nyl.) Giralt & P. Clerc
Syn.: Buellia hypophana (Nyl.) Zahlbr., Buellia thiopoliza (Nyl.) Boistel, Lecidea hypophana Nyl., Lecidea thiopoliza Nyl.
Lichenised.
Substrate: acidic soil (mostly on siliceous substrata), plant debris, living mosses
Altitudinal range: from the montane belt (potential vegetation: deciduous forests dominated by Fagus sylvatica and closed coniferous forests with Picea abies) to the alpine belt (potential vegetation: treeless Alpine grasslands and tundras, to the lower limit of perennial snow and the equilibrium line of glaciers)
Note: on Grimmia spp. and other mosses overgrowing siliceous rocks with optimum above treeline; probably more widespread in the Alps.
Austria: Tirol; Kärnten; Switzerland: Valais; France: Haute-Savoie; Italy: Trentino Alto Adige; Valle d'Aosta;