Description: Easily identified, as the discs of this species form dense black specks on the thallus of Candelariella vitellina (growing on acid-rock surfaces, not bark). Under the microscope the uppermost tissues of the disc (epihymenium) test K+ bright emerald blue. In Ireland, the species is known from north Kerry.

Key Identification Features:

• Discs form hard black specks on the surface of Candelariella vitellina
• Epihymenium K+ bright emerald blue.

Original text submitted by Vince J. Giavarini

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

iNaturalist: Carbonea vitellinaria at iNaturalist World Species Observations database.