Ferns and Fern Allies of Saskatchewan by Vernon L. Harms and Anna L. Leighton Published by Nature Saskatchewan Review by Sandy Bonny $ 19.95 ISBN-13 987-0-921104-27-8 This book provides a keyed guide to the ferns and fern allies (quillworts, club-mosses, spike-mosses and horsetails) of Saskatchewan—a boon to medicinal herbalists, fiddlehead gourmets, and environmentalists interested in the identification and preservation of rare plants and their habitats. Ferns and Fern Allies of Saskatchewan includes 58 species from all parts of the province; several are rare or endangered but many are pervasive species that will be familiar to local readers. A first flip through the book brought waves of nostalgia for afternoons spent pulling apart the black banded segments of the hollow green stalks of Equisetum hyemale, Common Scouring Rush, on the banks of the South Saskatchewan. There was also a moment of revelation: those strange brown pillars that waved above the moss beds we hid in playing ‘flags in the woods’ at summer camp were cones, the fruiting bodies of Lycopodium lagopus, Running Club Moss. The ferns that my husband and I struggle to keep from taking over our shaded urban yard belong to Matteuccia struthiopteris, the Ostrich Ferns, and I was…