Authoritative, information-packed guide offers a detailed enumeration of 1,000 species of edible plants and ferns. Arranged according to uses: purees and soups, cereals, salads, nibbles and relishes, condiments and seasonings, much more. Also, helpful data on poisonous plants, mushrooms, seaweeds, lichens. Indispensable for naturalists, hikers, campers. 129 figures. 25 plates. Bibliography.