That's Dryads Saddle pal. Edible and meaty when young but gets a lot tougher with age.
All the best
Ade
My website http://www.northwestbushcraft.co.uk
My YouTube channel http://www.youtube.com/user/Northwestbushcraft
Awesome, cheers mate. Good for paper making too from what ive just been told
I found some the size of dinner plates last week, they are really fast growing and can grow quite large in 24hrs. I will see if I have the photo when I get home tonight and post it up.