Caloplaca conversa (Kremp.) Jatta

Syn.: Callopisma conversum Kremp., Callopisma fallax Bagl., Caloplaca conversa (Kremp.) Jatta var. fallax (Bagl.) Wunder, Caloplaca fallax (Bagl.) Jatta, Caloplaca oreadum (Stizenb.) Jatta, Placodium conversum (Kremp.) Anzi
Lichenised.
Substrate: calciferous rocks, intermediate rocks (such as calciferous schists), 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 subtropical-montane lichen found on calciferous or basic siliceous rocks (especially basalt) in sunny sites with short periods of water seepage, often on colonies of cyanobacteria. According to Vondrák (see Nimis 2016) the species, which is related to C. conglomerata, is heterogeneous, and more species are involved, some of them fully lacking anthraquinones. See also note on C. concinerascens.
Austria: Vorarlberg; Tirol; Salzburg; Kärnten; Germany: Oberbayern; Schwaben; Switzerland: Luzern; Schwyz; Ticino; Valais; France: Alpes-Maritimes; Var; Italy: Friuli; Trentino Alto Adige; Lombardia; Piemonte; Valle d'Aosta;