Usnea cornuta Körb.

Syn.: Usnea constrictula Stirt., Usnea inflata (Duby) Motyka, Usnea inflata (Duby) Motyka var. cornuta (Körb.) Clauzade & Cl. Roux, Usnea intexta Stirt., Usnea intexta Stirt. var. constrictula (Stirt.) D. Hawksw. & D. Chapm., Usnea subpectinata Stirt.
Lichenised.
Substrate: bark, siliceous rocks
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 chemically and morphologically variable epiphytic species also rarely occurring on siliceous rocks, restricted to damp sites with frequent fog, mostly in the montane belt.
Switzerland: Bern; Luzern; Uri; Unterwalden; France: Haute-Alpes; Var; Italy: Friuli; Trentino Alto Adige; Liguria;