If you'll 'forgive the flight of fancy' this fungus for all the world looks like a Danish pastry with misapplied icing.
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Some fungi are very poisonous so a mistaken ID could have serious consequences.
No interactions present.
going to give us tree type so we have more to go on?
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Looks like a Plane tree
I believe you are right! The bark does seem to have the variations seen on a Plane tree. I shall have to be more mindful of noting the context in future. I know, "Tut, tut!" the host species is basic.
Lat/Lng: 50.3797, -4.0813
OS grid ref: SX521553