No interactions present.
There are some amazing photos of slime moulds here
but not sure they help at all with the ID as there are so many and worldwide.
Reply from Malcolm Storey of Bioimages:
Slime mould: fruitbodies (sporangia) of Arcyria denudata, I think.
Entomologist and biological recorder
Thank you Martin and Malcolm for the probable identification, and Mike for the link.
I've never really noticed slime moulds before but now I'm coming across them all over the place!
Lat/Lng: 51.8, -9.3
OS grid ref: SK0442