A large growth of fungus found at the foot of a tree with another story see plant group
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.
It is a Pholiota and I think your identification is probably correct but I would have liked to have had a picture of the stipe to be able to verify the species.
The tree had better tell its story soon before it dies.
Lat/Lng: 52.678683513172, 1.6430670618684
OS grid ref: TG463152