Caution: Do NOT use iSpot to identify fungi to eat!
Some fungi are very poisonous so a mistaken ID could have serious consequences.
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Or "Brittlegill" as they're sometimes called. Can you say what was growing around it - trees especially?
Hiya - the trees are mainly managed forestry - mature pines - possibly some larch. Other than that only tufted bog grass on a deeply rutted track. Hope this helps. Thank you very much.
Hints at (not exclusively) The Sickener (R. emetica). This fruits in summer and autumn.
Lat/Lng: 54.3676, -0.5258
OS grid ref: SE958978
dense woodland, mainly conifers - tracks through the forest