LichenIreland
  • Opegrapha physciaria (Nyl.) D. Hawksw. & Coppins

There are no records for this species at present.

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Know from south Kerry, Dublin and west Donegal, this species is lichenicolous on the thallus of Xanthoria parietina over which it can grow singly or in groups. It is similar to O. rupestris, but that species grows on crustose Verrucaria spp. on hard limestones. The three-septate spores are 12–17µm long.

Key characteristics

  • A lichenicolous lichen of Xanthoria spp.
  • Discs slit-like, spores three-septate and 12–17µm long.

Original text submitted by Vince J. Giavarini

 Simms, M. J., (2016). Opegrapha physciaria (Nyl.) D. Hawksw. & Coppins. [In] LichenIreland.
http://www.habitas.org.uk/lichenireland/species.asp?item=500082 Accessed on 2017-10-21.