Volume 1 of the basic study of American grasses, both indigenous and escapes, cultivated and wild. Over 1400 species. Full descriptions, information. Total in set: over 1100 maps, illustrations. "A definitive work invaluable to both amateur and professional botanists."-American Reference Books Annual.Hitchcock, A. S. is the author of 'Manual of the Grasses of the United States', published 1971 under ISBN 9780486227177 and ISBN 0486227170.