LichenIreland
  • Caloplaca arenaria (Pers.) Müll.Arg.
Caloplaca arenaria
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.

 

Sometimes confused with C. ceracea and C. crenularia, C. arenaria grows on nutrient-rich siliceous rocks, especially slate and basalt, frequently spreading over other lichens. This species has an immersed thallus, small, red-orange, flat-shaped discs with a persistent proper margin. In Ireland: Counties Cork and Antrim only.

Key characteristics

  • Thallus, not obvious; discs, small, red-orange, spreading to other lichens; spore septum narrow
  • On nutrient-rich, siliceous rock, especially basalt and slate.

Original text submitted by Vince J. Giavarini

 Simms, M. J., (2016). Caloplaca arenaria (Pers.) Müll.Arg.. [In] LichenIreland.
http://www.habitas.org.uk/lichenireland/species.asp?item=20513 Accessed on 2017-11-20.