Du er ikke logget ind
Beskrivelse
Designed as both a reference work and a year-round field manual, this volume contains more than 2,400 range maps and 995 line drawings, designed to clarify descriptions used in the keys. For botanists, naturalists, and students interested in an up-to-date treatment of the vascular flora of greater New England, it has proved to be an invaluable resource. The geographic scope of the work extends from the Canadian border south through Long Island and west to the Hudson River. The General Keys section contains fourteen keys that include such groups as aquatic plants, vines, and woody plants in winter condition. For both woody and herbaceous families, the keys cover flowering as well as fruiting conditions and rely heavily on the use of vegetative features to extend the utility of the book beyond the reproductive period.