Description: Known from south Kerry, north Kerry, Wicklow and west Donegal, this species is lichenicolous on the thallus of Pertusaria leioplaca on hazel. The tiny slit-like discs grow to 2mm wide and contain (five-) to six-septate spores.

Key Identification Features:

• A lichenicolous lichen of Pertusaria leioplaca on hazel
• Spores 4/ascus, with five- or six-septate spores.

Original text submitted by Vince J. Giavarini

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

iNaturalist: Opegrapha pertusariicola at iNaturalist World Species Observations database.