Strigula stigmatella (Ach.) R.C. Harris
Syn.: Arthopyrenia faginea (Schaer.) Swinscow, Arthopyrenia stigmatella (Ach.) A. Massal., Arthopyrenia thuretii (Hepp) H. Olivier, Lichen stigmatellus Ach., Opegrapha thuretii Hepp, Porina cinerea (Pers.) Zahlbr., Porina faginea (Schaer.) Arnold, Porina illinita Nyl., Porina muscorum A. Massal., Porina tenebricosa A. Massal., Porina thuretii (Hepp) Lettau, Sagedia illinita (Nyl.) Hav., Sagedia tenebricosa (A. Massal.) Jatta, Segestrella illinita (Nyl.) Körb., Segestria muscorum (A. Massal.) Trevis., Verrucaria stigmatella (Ach.) Ach.
Lichenised.
Substrate: bark, living mosses
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: a temperate species found on bark and on epiphytic mosses on basal parts of trunks of deciduous trees, especially Fagus; widespread throughout the Alps.
Austria: Vorarlberg; Tirol; Salzburg; Kärnten; Steiermark; Oberösterreich; Niederösterreich (incl. Wien); Germany: Oberbayern; Switzerland: Bern; Fribourg; Glarus; Graubünden; St. Gallen; Schwyz; Uri; Unterwalden; Vaud; Valais; France: Drôme; Isère; Haute-Savoie; Italy: Friuli; Veneto; Trentino Alto Adige; Lombardia; Piemonte; Liguria; Slovenia: Alpine and Pre-Alpine Slovenia; Trnovsky Gozd;