On a fallen beech tree in Greenden Wood towards the west of the Brede High Woods complex, while out walking with friends, we came across a fine display of the porcelain fungus growing from the dead sections of wood on a windthrown, but still living, beech tree.
Although very thin and delicate, the species is edible if the sticky slime that covers the cap is washed off. A French book on fungi (Le grand livre des champignons) describes is as a very mediocre food item and it is almost certainly not worth the bother both on quality and quantity grounds. Much better just to enjoy the sight of it.