FLAMMULINA Sp.Velvet Shank
Walking around the wood with Philip last week we came across what, on the face of it, appeared to be Flammulina velutipes.
A little more research on the subject revealed that there are in fact three Flammulina spp.
The fb's were definitely growing on Willow, which suggests that it might well be the much rarer Flammulina elastica which is only found on Willow.
I'm afraid it's beyond my abilities to separate the two. Any offers?