Description: At first sight, this species appears to be C. citrina on bark. What distinguishes it from other species is the pale, green-yellow soralia and thin thallus. It is never brightly coloured nor does it grow from ulcer-like swellings. It is rare on old parkland trees in Fermanagh, Donegal and Laois.

Key Identification Features:

• Like C. citrina on bark but pale yellow-green coloured
• Soralia punctiform on a thin thallus; elm, sycamore.

Original text submitted by Vince J. Giavarini

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

iNaturalist: Scythioria phlogina at iNaturalist World Species Observations database.