Modern methods in plant taxonomy; edited by V. H. Heywood. Conference on Modern Methods in Plant Taxonomy, University of Liverpool, 1967. Heywood, V. H. (Vernon Hilton), 1927- ed. Botanical Society of the British Isles. Linnean Society of London. Plants Classification Congresses. QK95 .C57 1967 582 HEM Includes bibliographical references and index. London ; New York : Botanical Society of the British Isles and the Linnean Society of London by Academic Press, 1968. 1968. 1968 Text xv, 312 p. : eng