I first spotted this fungus probably about a couple of weeks ago, just emerging from the bark of a dead birch in the “Plantation”. It was just a white sphere then but has now developed into something that I have been able to identify. A “bracket” fungus which has no stem (stipe) and whose spores come out of tiny pores (see bottom photo) unlike mushrooms where they come from gills under the cap. A lot of other fungi appearing  at the moment particularly on the cleared areas of the Firehills, so more to follow on this subject.