[by T. A. Coward]; edited and revised by J. A. G. Barnes from the three-volume work by T. A. Coward; including many coloured illustrations by Archibald Thorburn and othersFrederick Warnec1969
by Charles N. Colyer in collaboration with Cyril O. Hammond; with 25 plates in colour, 28 half-tone plates and numerous text figures and diagrams depicting 286 representative species from original enlarged microscope drawings by Cyril O. HammondF. Warne1968
by Charles N. Colyer in collaboration with Cyril O. Hammond; with 48 plates in colour, 55 half-tone plates and numerous text figures and diagrams depicting 286 representative species from original enlarged microscope drawings by Cyril O. HammondF. Warne1951
by Edward Step ; with 24 colour plates by Dorothy Fitchew, 151 half-tone plates and 58 text figures, also pictorial keys of leaves and buds to facilitate identificationF. Warne1940