To the memory of Vernon Hilton Heywood
Vernon Hilton Heywood was an eminent botanist who had been active for many years on several fields of plant sciences. He was born on the 24 December 1927 at Edinburgh and died on 17 September 2022 at Reading, shortly before reaching the age of 94. This memoir is dedicated to remember his activity as scientist and teacher and highlight his personality. Special attention is paid to the first decade of his professional and personal activity, little known to conservationists and even to most botanists.