Growing on the topside of a piece of discarded hardboard.
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.
Cap size ≈20 mm, stem ≈30 mm x ≈3 mm.
Note the gills not uniform, could possibly eliminate it from the Galerina genus..?
An iSpot Project- HELP WITH IDS - UK & Ireland Community - PLANTS
Not sure what you mean by uniform but Galerina often have different length (and height)gills.
All given ID's are subject to error/ommissions. Please seek independent verification before acting on ANY advice given. BE SAFE =)
Lat/Lng: 53.2055, -0.5631
OS grid ref: SK960685
Backies woods, Boultham Moor, Lincoln.