https://italic.units.it/index.php?procedure=taxonpage&num=2258
Staurothele clopima (Wahlenb.) Th. Fr.
Thallus crustose, episubstratic, thin, continuous to rimose-areolate, dark brown to blackish brown, the areoles 0.1-0.3 mm wide, convex but not strongly...
thfr