• Diploschistes gypsaceus (Ach.) Zahlbr.
Click on the image to enlarge it in a new window
Diploschistes gypsaceus
© Mike Simms
Diploschistes gypsaceus
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.


This crustose calcicole inhabits a similar niche to Gyalecta jenensis on shaded, naturally occurring, vertical, limestone rock. The K-, cracked thallus is highly conspicuous in its white colour and densely frosted (pruinose) surface. The deeply concave discs (2-5mm diam.) are frequent. Well recorded in the Burren (County Clare) but rather rare throughout rest of Ireland.

Key characteristics

  • White, cracked crust, densely pruinose on sheltered, natural vertical limestone outcrops
  • Thallus K-; discs concave, often with Gyalecta jenensis.

Original text submitted by Vince J. Giavarini

 Simms, M. J., (2016). Diploschistes gypsaceus (Ach.) Zahlbr.. [In] LichenIreland. Accessed on 2018-08-16.