Stansted Forest Fungi (+ PiPs)

A friend and I spent a few hours crawling around in Stansted Forest on a fungi hunt. We found quite a few, here are the first three.

Identifying fungi is notoriously difficult, and I can't find an ID for this one. I'd be grateful if anyone knows.

PiP No.1 is a Common Puffball.
PiP No.2 is a Porcelain Mushroom (I think).