Flora Europaea, Vol. 4: Plantaginaceae to Compositae (and Rubiaceae)

Originally published between 1964 and 1980, this fourth volume is a revision of the seventh edition of Willis, with substantial amendments and additions. One distinct feature is an alphabetical list of accepted family names in this dictionary with their equivalents in Bentham & Hooker's Genera Plantarum and Engler's Syllabus.