The Ferns and Fern Allies of New Mexico, describes and illustrates nearly all the species of fern known from New Mexico at the time of publication in 1954. Although somewhat dated in terms of taxonomic nomenclature, the work features the detailed drawings by the noted botanical illustrator Janine Janish, as well as thorough descriptions and habitat information for each fern. As suggested in the preface, many who have thought of New Mexico primarily as a hot and dry country will be surprised at the number of ferns to be found there. Most of the state's species are in the massive, wooded mountain ranges. However, there are numerous species able to thrive in desert situations. This manual lists 7 families, 24 genera, and 75 species and varieties of ferns and fern allies (horsetails, clubmosses). However, 11 of the species have not actually been collected in the state though they have been found in similar country in neighboring states and are to be expected in New Mexico. Six species previously reported for New Mexico are excluded. In the main body of the work, following brief notes on the position of the Pteridophyta in the plant kingdom, their general characteristics, and their fossil occurrence in New Mexico, there are keys to families, genera, and species. Also provided are both genera and species descriptions, with information on habitat and general distribution. Essential nomenclature synonymy is also included for each species. The book is illustrated with line drawings which include habit sketches and details of critical characters. The book features a glossary of scientific terms, and an index to both common and Latin names.