This was taken in Silver Moor Lane near East Rolstone. Not the Mendips in the distance, but the hills around the south of Bristol where the airport is.
Lawyer's Wig or Shaggy Inkcap as it is more commonly known. Now, I wouldn't touch this with a bargepole but a bit of research on Wiki shows it to be edible. That did surprise me. Very difficult to cook mind because it rapidly autodigests, the cap and gills turning into black jelly very quickly. There are ways to do it but a packet of button mushrooms from Waitrose sounds a better option. This one was seen right by the roadside in Puxton.
An enjoyable spin out, 22 more miles on the clock.