Autumn Leaves (not)

From a distance it looks like piles of autumn leaves round a tree stump, but no.

Fungus

Let me immediately confess that I have absolutely no idea what sort of fungus this is - that's one of the many areas of ignorance I have. So if anyone can identify please do.

There were three or four of them at the edge of a park area beside the road, looking for all the world like small white pegs.

Tree Fungus

This was also taken in the Wood of Cree. I've no idea what the name of the fungus is, but it's as hard as concrete.

Possibly a viewer might identify?