Description: Differs from f. pycnocarpa in the neatly developed white convex areoles (pieces of thallus) covered in black soralia and total lack of discs. Thallus K+ yellow. In Ireland, it is only known from County Kerry.

Key Identification Features:

• Thallus K+ yellow, without discs; areoles white, convex, smothered in black soralia
• Coarse siliceous rocks.

Original text submitted by Vince J. Giavarini

Distribution Map from NBN: Miriquidica pycnocarpa f. sorediata at National Biodiversity Network mapping facility, data for UK.

iNaturalist: Miriquidica pycnocarpa f. sorediata at iNaturalist World Species Observations database.