Common puffball

Hi and thanks! I'm pretty sure it was a puffball because right next to it was a puffball in a more mature stage releasing spores. I didn't realize puffballs looked this way in this stage. I thought the spikes seemed unusual; it almost looks like a golf ball.

Nice spotting and picture. At the beginning I thought it belonged to the Lycoperdon curtisii family because of the sort of spikes; we call them "hongo erizo" (http://en.wikipedia.org/wiki/Lycoperdon_...) but Shannon is probably right because of its very round shape and also I am just curious and don´t know. Just commenting...in case we see a lycoperdon curtisii in the future =). Greetings