I can't tell you much about this mushroom. I saw it just once, more than 10 years ago. It was growing from the bottom of an old oak tree trunk, before being fully developed, like here on the photograph, must have been like some alien looking yellow egg.

The umbrella was like made of plush. I thought at first, look, someone has lost a teddy bear mushroom in the woods.

and that's all ... just an ordinary plush mushroom ... an oak forest plushroom ... or something like that :)

( As always in these post on Steemit, all the photograph, and the crop of that photograph :) and especially the search through the dense forest of old folders - is my work )