Phaeocalicium populneum (Brond. ex Duby) A.F.W. Schmidt
Syn.: Calicium populneum Brond. ex Duby, Embolidium populneum (Brond. ex Duby) Vain., Phacotium populneum (Brond. ex Duby) Trevis.
Non- or doubtfully 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: saprophytic on thin, mostly decaying twigs of Populus tremula.
Austria: Tirol; Salzburg; Steiermark; Oberösterreich; Niederösterreich (incl. Wien); Italy: Trentino Alto Adige; Lombardia; Piemonte; Slovenia: Alpine and Pre-Alpine Slovenia;