This one growing on Millstone Grit sandstone (the building stone of the temple)
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 Alan. Perhaps I need to get some Potassium Hydroxide!
Lat/Lng: 53.2427, -1.9216
OS grid ref: SK053717