Come back Casey!
It was a muggy afternoon and I stopped for a rest under an ash tree. I must have dropped off because I suddenly became aware of my dog slowly rising into the air on a flying saucer... Come back Casey! I shouted and he just had time to jump off on to a tree stump. I could swear I heard the tinkling laughter of woodland nymphs behind me but when I turned to look there was nothing there - only their saddles remained.
Polyporus squamosus, dryads' saddle bracket mushroom.
Another barely believable fungus image (not mine) - do look.