Verruculopsis lecideoides (A. Massal.) Gueidan & Cl. Roux var. lecideoides

Syn.: Thrombium lecideoides A. Massal., Verrucaria lecideoides (A. Massal.) Trevis.
Lichenised.
Substrate: calciferous rocks
Altitudinal range: from the mesomediterranean belt (potential vegetation: evergreen broad-leaved forests dominated by Quercus ilex) 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 calciferous rocks, mostly limestone and dolomite, but also on base-rich siliceous substrata, in exposed situations (e.g. on the top of isolated boulders); apparently more frequent in the Southern and Western Alps. See also note on Verrucaria beltraminiana.
Austria: Niederösterreich (incl. Wien); Switzerland: Bern; Graubünden; Vaud; Valais; France: Alpes-de-Haute-Provence; Haute-Alpes; Alpes-Maritimes; Drôme; Isère; Savoie; Haute-Savoie; Vaucluse; Var; Italy: Friuli; Veneto; Trentino Alto Adige; Lombardia; Piemonte; Liguria;