Gyalecta ulmi (Sw.) Zahlbr.

Gyalecta ulmi (Sw.) Zahlbr.

Syn.: Gyalecta rubra (Hoffm.) A. Massal., Haematomma rubrum (Hoffm.) H. Olivier, Lecania rubra (Hoffm.) Müll. Arg., Lecanora rubra (Hoffm.) Ach., Lepadolemma rubrum (Hoffm.) Trevis., Lichen ulmi Sw., Phialopsis rubra (Hoffm.) Körb., Phialopsis ulmi (Sw.) Arnold

Lichenised.

Substrate: bark,

Altitudinal range: from the submediterranean/colline belt (potential vegetation: mixed deciduous forests dominated by Quercus and Carpinus) to the montane belt (potential vegetation: deciduous forests dominated by Fagus sylvatica and closed coniferous forests with Picea abies)

Note: a warm-temperate lichen found on mature trees (especially near the base of Ulmus), but also on mosses on steeply inclined faces of calciferous rocks; apparently widespread throughout the Alps but rare, and probably more frequent in the past.

Austria: Vorarlberg; Tirol; Salzburg; Kärnten; Steiermark; Oberösterreich; Niederösterreich (incl. Wien); Germany: Oberbayern; Switzerland: Bern; Graubünden; St. Gallen; Schwyz; Unterwalden; Vaud; Valais; France: Alpes-de-Haute-Provence; Alpes-Maritimes; Isère; Savoie; Haute-Savoie; Var; Italy: Veneto; Lombardia; Piemonte; Slovenia: Alpine and Pre-Alpine Slovenia;

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