This morning this fungus was found growing out of a Birch log in Graeme Hendrey Wood in Surrey. My first thought was a Pluteus but then I realised the gills were not pink-tinged from spores despite the fruiting bodies looking quite mature. However when producing a spore print it was obvious that the spores were indeed pink so I’m sticking with my original thought. But I am not sure which Pluteus species it could be. If anyone could help then that would be much appreciated!