LichenIreland
  • Opegrapha parasitica (A.Massal.) H.Olivier
Opegrapha parasitica
Click on map to open large map in new window
(Map updated: 11 August 2009)

Click here to view an interactive map of the Northern Ireland dataset as currently collated by CEDaR.
The map is generated through the NBN Gateway using their Interactive Mapping Tool.

 

As its name implies this ‘scripture lichen’ is parasitic. It invades the thallus of both Aspicilia calcarea and A. contorta. The small, black, snaky, elongated discs (lirellae) are easy to see. It should not be confused with O. rupestris which grows mostly on Verrucaria species. Northern and central Ireland. It is absent from the south.

Key characteristics

  • Parasitic on the thallus of Aspicilia calcarea and A. contorta
  • Thin black discs (lirellae), singly or thinly scattered, not clustered.

Original text submitted by Vince J. Giavarini

 Simms, M. J., (2016). Opegrapha parasitica (A.Massal.) H.Olivier. [In] LichenIreland.
http://www.habitas.org.uk/lichenireland/species.asp?item=19217 Accessed on 2017-10-23.