Xanthoria parietina (L.) Th. Fr. subsp. ectanea sensu Clauzade & Cl. Roux non (Ach.) Clauzade & Cl. Roux
Syn.: Xanthoria ectanea sensu Ozenda & Clauzade non (Ach.) Räsänen
Lichenised. Poorly known taxon.
Substrate: calciferous rocks, siliceous rocks
Altitudinal distribution: submediterranean/colline belt (potential vegetation: mixed deciduous forests dominated by Quercus and Carpinus)
Note: a taxon with an unresolved nomenclature, forming thalli with narrow (to 1 mm wide), convex lobes lacking erect structures, often fertile; on calcareous and basic siliceous rocks at low elevations; overall distribution unknown, in the study area so far reported only from the Western Alps (France).
France: Alpes-de-Haute-Provence; Alpes-Maritimes; Vaucluse;