Fairly sure it's a Parasol type fungi, found in ancient broadleaf woods.
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.
Certificate in Contemporary Science (Open)
Lat/Lng: 51.9261, -0.6833
OS grid ref: SP906261
Between Linslade Wood & Bluebell Wood, Beds/ Bucks County boundary.