This foliose lichen is similar to Xanthoria parietina but tends to have a more orange hue and more contorted lobes. The centre of the thallus is densely isidiate with knobbly, convex isidia. Apothecia tend to be sparse or absent; when present the discs have roughened margins.
Calcium-rich stonework or mortar
Common and widespread with a south-eastern bias.
Leicestershire & Rutland Map
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