Lecanoraceae Lecanora aitema Growth type crustose Chemical results: K-, C-, KC +/- faint yellow, P-, UV+ pale orange On acidic bark of twigs, pine twigs, wood and worked timber. Mainly in upland areas and in the north and west. In the south it is mainly found in areas with low nutrient deposition. Small patches of granular or areolate creamy-white thallus, apothecia with convex red-brown to greenish-black discs. Margin initially distinct, soon excluded. Spores simple, (10-)12-17 x 4.5-5.5 µm. Similar: Lecanora symmicta has paler discs

Lecanora aitema
Morden Bog, Dorset. WLG meeting March 2017