Slime mold spore bodies - can anyone id species?

Slime mold spore bodies - can anyone id species?

Observation - Slime mold spore bodies - can anyone id species? - UK and Ireland. Description: Many spore bodies of a slime mold growing on am old painted wooden strut in an enclosed lean-to garage area. Anybody out there into their myxomycetes can give me an id for the species, and what this one will look like beyond this stage?

Many spore bodies of a slime mold growing on am old painted wooden strut in an enclosed lean-to garage area. Anybody out there into their myxomycetes can give me an id for the species, and what this one will look like beyond this stage?