A.R. Clapham, T.G. Tutin and D.M. Moore Flora of the British Isles
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A.R. Clapham, T.G. Tutin andD.M. Moore FLORA OF THE BRITISH ISLES Ed. 3, Cambridge University Press, Cambridge etc., 1987. ISBN 0-521-30985-9. 688 pp., 79 figs., Price GBP 65.00, US $ 125.00