Porina lectissima (Fr.) Zahlbr.

Syn.: ?Sagedia caliginosa Anzi, Sagedia umbonata (Garov.) Jatta, Segestrella lectissima (Fr.) Anzi, Segestria erysibodes (Taylor) Trevis., Segestria lectissima Fr., Segestria thelostoma (Flot.) A. Massal., Verrucaria erysiboda Taylor, Verrucaria irrigua Taylor, Verrucaria rubiginosa Taylor, Verrucaria umbonata Garov.
Lichenised.
Substrate: siliceous rocks,
Altitudinal range: from the mesomediterranean belt (potential vegetation: evergreen broad-leaved forests dominated by Quercus ilex) to the subalpine belt (potential vegetation: open, taiga-like forests dominated by Larix decidua and/or Pinus cembra and Rhododendron)
Note: a mild-temperate to Mediterranean-Atlantic species found on steeply inclined surfaces of siliceous rocks in shaded-moist situations, often in forests, or on periodically submerged rocks near creeks and lakes.
Austria: ?Vorarlberg; Tirol; Salzburg; Kärnten; Steiermark; Switzerland: Bern; Ticino; Uri; France: Alpes-Maritimes; Var; Italy: Friuli; Trentino Alto Adige; Lombardia; Piemonte; Liguria; Slovenia: Alpine and Pre-Alpine Slovenia;