posted 7 years ago
That is a species of Calvatia, you can tell by the all white color inside and out and I don't see any evidence of cap forming internally.
Calvatia are edibles.
As always, make sure you know absolutely (find a local mycologist or mushroom expert) before you eat one, When it comes to mushrooms you usually only get one chance and getting it wrong results in the long dirt nap.
Redhawk