Fungi on rotten log.
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.
I think P. piluliformis usually has a whiter stem than these.. although the book says it does get flushed with cap colour and progressively darker towards base, so it might well be right. I thought maybe Armillaria tabescens as an alternative but that is quite rare I think. Sorry I can't help more with the ID...
It is not a Psathyrella.
It looks very familiar, bit I can't quite place it ...
Lat/Lng: 52.6588, -1.2533
OS grid ref: SK506070