On Hawthorn twig. No rhizines but doesn't appear tufted enough to be Xanthoria candelaria and lobes look wrong for X. polycarpa!
Caution: Do NOT use iSpot to identify fungi to eat!
Some fungi are very poisonous so a mistaken ID could have serious consequences.
No interactions present.
Thanks - those lobes were really confusing me!
Lat/Lng: 50.7, -2.1
OS grid ref: SY9691