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 lichen is very easily dismissed as H. revoluta (described elsewhere), which you will see looks very like it. H. britannica is a foliose lichen of well-lit acid rocks and moorland shrubs, especially at sites close to the sea. The jigsaw piece-like, blue-grey coloured, often ascending lengthy lobes should help distinguish this species as will the presence of the indigo blue to grey-black, sub-terminal, granular soredia. North and western Ireland; absent from the south-east.
Original text submitted by Vince J. Giavarini
|Simms, M. J., (2016). Hypotrachyna britannica (D.Hawksw. & P.James) P.James. [In] LichenIreland. |
http://www.habitas.org.uk/lichenireland/species.asp?item=18868 Accessed on 2016-10-22.