Authoritative, easily accessible guide omits lengthy technical descriptions in favor of easy-to-use keys covering such characteristics as leaves, twigs, bark, buds, seeds, stems, fruit or fruit stalks, and other identifying traits. Over 300 pen-and-ink drawings by Maud H. Purdy, noted botanical illustrator. ""I recommend this book most highly."" — Farida A. Wiley, American Museum of Natural History.