Textbook of theoretical botany : vol. 2 / by R. C. McLean and W. R. Ivimey-Cook. McLean, R. C. (Robert Colquhoun), 1890- Ivimey-Cook, W. R. (Walter Robert), 1901-1952, joint author. Botany. QK47 .M15 580 MCT Includes Bibliographical references and index. London ; New York : Longmans, 1956. 1956. 1951 Text v. : eng