• United States
11 Jun 08
Considering that mycologists have a hard time differentiating between species and varieties, I'd say that you'd be best off avoiding any that are wild picked! There are some good identifying guides that you can find on amazon and B&N, if you look.
3 Dec 09
it is not easy - some poisonous ones look like edible ones. if you go mushroom picking then get someone with lots of experience of the mushrooms in your area to help you and tell you which ones to avoid. i wouldn't recommend doing it yourself with just a handbook to help.