small (1") convex capped fungus with adnexed gills. Distinct umbo with some signs of striation No particular smell.
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.
This looks to me like a small Inocybe, which will give a "snuff brown" spore print. Mycena species give a white spore print. I doubt it is a Mycena, and definitely not M. arcangeliana, which grows on logs and stumps.
Lat/Lng: 51.2815, -0.722
OS grid ref: SU892543