Mary Parke (1902–1981), who was a founder member of the British Phycological Society, produced a preliminary checklist of British marine algae in 1953, corrections and additions of this were published in 1956, 1957 and 1959. In 1964 M.Parke and Peter Stanley Dixon (1929–1993) published a revised check-list, a second revision of this was produced in 1968 and a third revision in 1976. Distribution was added to the checklist in 1986 with G.R.South and I.Tittley's A Checklist and Distributional Index of the Benthic Marine Algae of the North Atlantic Ocean.