Thyrea girardii (Durieu & Mont.) Bagl. & Carestia

Syn.: Collema girardii Durieu & Mont.
Lichenised.
Substrate: calciferous rocks
Altitudinal range: from the mesomediterranean belt (potential vegetation: evergreen broad-leaved forests dominated by Quercus ilex) to the submediterranean/colline belt (potential vegetation: mixed deciduous forests dominated by Quercus and Carpinus)
Note: a Mediterranean to mild-temperate species found on calcareous rocks; ecology and distribution resemble those of Th. confusa; several records from the Alps need confirmation.
Switzerland: ?Graubünden; ?Valais; France: Alpes-de-Haute-Provence; Alpes-Maritimes; Italy: Friuli; Veneto; Lombardia; Piemonte;