My daughter found this one on our last outing. The colour was quite eye catching and what I would describe as fluorescent lime green, it was so bright I would expect it to glow in the dark.
Each individual growth was approx.1cm in diameter and under magnification looked like a small sponge. It was growing on a decaying branch, most likely Beech.
Would be over the moon if someone could ID it.
Gerry
