A BRYOPHYTE FLORA OF ESSEX 83 A Bryophyte Flora of Essex By A. J. Pettifer To Eric Saunders, B.E.M., this flora is dedicated, In a short space of time he not only contributed many new county records for Essex, but refound many old recorded species. Every walk of his was a bryological treasure hunt. "Passing Bow-Bridge,where the County of Essex begins, the first observation I made was that all the villages that may be called the neighbourhood of the City of London . . . are increased in buildings to a strange degree, within the compass of about twenty to thirty years at most." From Daniel Defoe, 1724, Tour through the Eastern Counties. This is my reason for attempting an up-to-date bryophyte flora of Essex. The building, which apparently was taking place over two hundred and forty years ago in a small way has ac- celerated and in its latest report the South Eastern Economic Planning Council suggests that Chelmsford, Basildon, Rayleigh and Southend areas should be studied as to the possibility for future development. Many old bryophyte habitats have dis- appeared and more are likely to disappear in the future. General Essex with 907,855 acres (Whitaker's Almanac, 1967) is the eighth largest county in area in Great Britain. For the purpose of this flora, Essex still begins at Bow Bridge but it must be remembered that administratively many acres were taken away from the county to help form the present Greater London. Much of the county, apart from the Chelmsford and Colchester districts, the new towns of Harlow and Basildon, the suburbs of London and along the River Thames from West Ham to Tilbury, remains remarkably rural with agriculture the oldest industry of all. Many acres of barley, wheat and mixed corn are grown annually and quantities of eggs, milk, poultry and fruit are produced. There is also a quite extensive seed-growing area around Coggeshall, Kel- vedon and Marks Tey and this, in season, attracts attention by reason of the colourful display. In Saxon times a great deal of the county was composed of natural woods, grassy commons and