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.
If one looks closely at the tiny leafy lichens growing on nutrient-enriched surfaces, such as the lower branches of an ash or a sycamore or along a line of concrete fence tops, then it is likely that the pale brown rosettes of this species will be among them. The circular thallus, the spreading lobes that expand and divide near the tip where attachment organs (rhizinae) may protrude, and mass of globose soralia, speckled blue, green or black, these are the most obvious distinguishing features.
Original text submitted by Vince J. Giavarini