Picture taken on the third of June 2007, near the quarry "Carrière Bétons du Capcir" between Puigvalador and Querigut, Oriental Pyrenees, France, on calcareous rock, 45 % inclination, East oriented, 1.600 m. altitude.
It is probably the most common species of Leptogium, widespread but not necessarely frequent. Always among mosses, on differebt substrata, even constructive materials.
Foliose lichen, lobes over 1 mm wide, striated margins with thin digitate isidia, from gray to brown colour. With certain variability.