Peterson Field Guide to Mushrooms of North America, Second EditionA new edition of the classic, best selling field guide to mushrooms from Peterson Field Guides Toadstools, truffles, boletes and morels, witches' butter, conks, corals, puffballs and earthstars: mushrooms are both mysterious and ecologically essential. They can also be either delicious or deadly. Thousands of different species of mushrooms appear across North America in the woods, backyards, and in unexpected corners. Learning to distinguish them is a