Amorphous, mustard-coloured, gelatinous and becoming 'liquid' on touching.
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.
Definitely looks like a Slime mould.
I'm not familiar with P.polycephalum but I would suggest possible id as Fuligo septica Dog's vomit!
The more I know the more I realise I don't know
I would agree with Fuligo
Certainly looks like Fuligo
Lat/Lng: 54.607, -2.0413
OS grid ref: NY974235