Two prolific mushrooms in the Mount Rogers preserve. Eat them young, sauteed with garlic and greens and they are heave.  Leave the older ones alone as they get tought and taste very earthy. There are a lot of edible mushrooms and lichen around here - but be abolutely certain of what you are collecting.  Some mushrooms and toadstools are fatal on contact.  Get a good guide book and hesitate before consuming any wild food source until you are sure it won't kill you. Most guide books have a large X by the poisonous plants and good picture.