Byssoloma leucoblepharum (Nyl.) Vain.

Syn.: Bilimbia leucoblephara (Nyl.) Arnold, Calidia rhizophora Stirt., Lecidea leucoblephara Nyl.
Lichenised.
Substrate: bark,
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 pantropical foliicolous species, sometimes occurring also on bark; extremely rare in the Alps.
Austria: Kärnten; France: Alpes-Maritimes;