Pale Brittlestem aka Common Crumblecap
Some of these turned up in NBGW just over a week ago.
No doubt at all about the ID as it was confirmed by no less a person than Roy Watling himself.
It is another of the species which seems to turn up fairly regularly in the wood. This time at the appropriate time of the year! Unusually, they often appear in the same place for a second crop later in the year.
Unlike the ones in NBGW these clearly showed the "frilly edge" to cap which are the remnants of the veil.