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 striking yellow-green lichen is a common sight on shaded siliceous rocks, for example, sandstones, and the shaded brickwork of old buildings. It is relatively insensitive to industrial pollution. It consists of a powdery crust often spreading extensively over the substrate. It is occasionally fertile, with rather pale, small, yellowish-beige discs. Under a UV lamp it is dull to bright orange which helps to separate it from some similarly coloured sterile species.
Original text submitted by Simon Davey