Medical botany : plants affecting man's health / Walter H. Lewis, Memory P. F. Elvin-Lewis. Lewis, Walter Hepworth. Elvin-Lewis, Memory P. F., 1933- joint author. Materia medica, Vegetable. Medicinal plants. Plants, Medicinal. RS164 .L475 615.32 LEM Includes index. Bibliography: p. 456-465. New York : Wiley, c1977. c1977. 1977 Text xv, 515 p. : eng