A distinctive, crustose species with a light blue-grey, granular thallus that turns green when wet or shaded. The flesh-pink apothecia may be sessile or short-stalked. The disc is convex and often cortorted and slightly pruinose, while the margins become excluded over time.
Thallus: C-, K+ orange, UV+ glaucous
In Scotland, Icmadophila ericetorum is common in The Highlands where it grows on damp peat and rotting wood, especially in exposed moorland. BLS distribution map
scottishlichens.co.uk 