I photographed a very similar looking fungus in the same location as this last year and put it down as a
Shaggy Pholiota, does that sound correct?
As you can see it's still quite young at the moment, I hope to get back in the next few days to get some more pictures as it develops.
Unfortunately the tree who's base it's growing from was sawed down about a week ago so I guess this is this lady's last year of 'flowering'...