Thelidium incavatum Nyl. ex Mudd

Thelidium incavatum Nyl. ex Mudd

Syn.: Amphoridium umbrosum A. Massal., Amphoroblastia incavata (Nyl. ex Mudd) Servít, Polyblastia incavata (Nyl. ex Mudd) Croz., Thelidium umbrosum (A. Massal.) Arnold, Verrucaria umbrosa (A. Massal.) Trevis.

Lichenised.

Substrate: calciferous rocks, intermediate rocks (such as calciferous schists)

Altitudinal range: from the submediterranean/colline belt (potential vegetation: mixed deciduous forests dominated by Quercus and Carpinus) 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 small calcareous pebbles close to the ground, usually in upland areas; probably more widespread, but overlooked. Th. umbrosum is perhaps an independent species.

Austria: Vorarlberg; Tirol; Salzburg; Kärnten; Steiermark; Oberösterreich; Niederösterreich (incl. Wien); Germany: Oberbayern; Switzerland: Bern; Graubünden; Luzern; Schwyz; Uri; Unterwalden; France: Alpes-de-Haute-Provence; Haute-Alpes; Alpes-Maritimes; Drôme; Isère; Savoie; Haute-Savoie; Vaucluse; Var; Italy: Friuli; Veneto; Trentino Alto Adige; Piemonte; Liguria; Slovenia: Alpine and Pre-Alpine Slovenia;

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