Lecanora rouxii S. Ekman & Tønsberg

Syn.: Lepraria flavescens Cl. Roux & Tønsberg, Lepraria flavescens Clauzade & Cl. Roux nom. inval.
Lichenised.
Substrate: calciferous rocks
Altitudinal range: from the mesomediterranean belt (potential vegetation: evergreen broad-leaved forests dominated by Quercus ilex) to the montane belt (potential vegetation: deciduous forests dominated by Fagus sylvatica and closed coniferous forests with Picea abies)
Note: on vertical to underhanging surfaces of weathered or fissured calcareous rocks seldom wetted by rain, often in woodlands, mostly in natural habitats; certainly more widespread in the Alps. Closely related to Lecanora swartzii.
Austria: ?Vorarlberg; Tirol; Salzburg; Kärnten; Steiermark; Oberösterreich; Germany: Oberbayern; Switzerland: ?Bern; Schwyz; France: Alpes-de-Haute-Provence; Alpes-Maritimes; Drôme; Isère; Vaucluse; Var; Italy: Veneto;