Is this a fungus or a lichen? The photos are of areas very close together but taken a week apart. Whatever it is is growing on the top bar of a wooden gate.
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.
Lat/Lng: 55.4732, -3.2024
OS grid ref: NT240205