One of the most overlooked prize mushrooms is the puffball. I've recently started paying more attention to them. My wife discovered a type of puffball I'd never heard of, which grows at the base of trees instead of in the grass like most puffballs. It also has a small stem. But I looked it up and it was a choice puffball.
Positive Identification? Slice one in half, and if it's solid white inside you are good to go.
I cut open three. One (pic above) had some browning happening at the base, the other two were white. I am assuming a maturity difference. Book is "out for delivery" so now I wait.