Possibly Lindbladia tubulina. I think I need Harold's help!

Bugsrus

A slime mould that looks remarkably like blackberries.

Ed

e6filmuser

Ed,

You are probably right, the other possibilities being a Badhamia (utricularia or cineria).

Linbladia (there is only one species) starts of as white plasmodium and passed through brown to black/grey. Badhamia starts off as bright yellow plasmodium.

Harold

Bugsrus

Thanks Harold

After much hunting on iNaturalist and getting some better shots of the stipe and following the progression (towards a beautiful blue sporangium) we are tending towards B. utricularia. Thanks for the heads up.
Ed

e6filmuser

Ed,

You might find this useful:

myxomycetes.net/

Harold