Umbilicaria crustulosa (Ach.) Lamy
Fungi | Ascomycota | Lecanoromycetes | Umbilicariales | Umbilicariaceae | Umbilicaria | Umbilicaria crustulosa
siliceous rocks
Walliser Alpen, S of Matterhorn, Breuil, NW of Plan Maisson, Plan Torette