LichenIreland
  • Toninia diffracta (A.Massal.) Zahlbr.
Toninia diffracta
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 rare crustose lichen has a scaly grey thallus with a dense white frosting of granular pruina slashed with shallow fissures. It grows in crevices on steeply sloping limestone rock. It is strongly associated with Collema and Leptogium species often intermingling with or overgrowing them, especially when young. In Ireland, the species has been recorded from Counties Clare, Galway, Sligo and Antrim but a re-examination of the collections is essential.

Key characteristics

  • Grey scaly thallus covered in white granular pruina
  • Crevices in steeply sloping limestone.

Original text submitted by Vince J. Giavarini

 Simms, M. J., (2016). Toninia diffracta (A.Massal.) Zahlbr.. [In] LichenIreland.
http://www.habitas.org.uk/lichenireland/species.asp?item=19090 Accessed on 2017-12-15.