Description: This small species forms thin circular crusts of tiny squamules on soft, stony calcareous soils. The convex squamules can be lobed or granular; red-brown concave discs are frequent. In Ireland, it is present in Counties Kerry and Cork and was formerly known from Benbulbin, County Sligo.

Key Identification Features:

• Thallus thin, crustose-squamulose with proliferating lobes forming circular patches on compacted calcareous soils
• Discs common, red-brown, concave.

Original text submitted by Vince J. Giavarini

Distribution Map from NBN: Scytinium biatorinum at National Biodiversity Network mapping facility, data for UK.

iNaturalist: Scytinium biatorinum at iNaturalist World Species Observations database.