Found this rather interesting thing growing on an old fallen branch of (I think) Ash. I think it might be some kind of slimemould. The yellow interiors are masses of yellow slightly angular spores roughly 10microns across (microscope camera software playing up so will post a photo of them when I manage to get it sorted out).
Any suggestions of a genus to start looking up would be much appreciated. I've got copies of Ing and of Stephenson & Stemple but need a helping hand in getting to an appropriate starting point - they could do with some decent photographs! If you happen to know the species then even better.
The little bollard at the bottom is I think a very young
Tubaria species - only because there were others of intermediate stages to full maturity on the same branch
Thanks as always,