Northeast Ferns, Second Edition, is a full-color field guide to the ferns and lycophytes (fern relatives) found in the northeastern United States. Included are keys, descriptions, color photographs, and distribution maps for all the ferns and lycophytes (quillworts, clubmosses and spike-mosses) known from the northeast region (Connecticut, Maine, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, and...