68 The Essex Naturalist bank ends about midway along the riverside boundary of the site, a grass track continues with a much more open aspect of the river. At about this point, common club-rush Schoenoplectus lacustris is present in the river and further south a small muddy island has formed and has developed a plant community which includes brooklime Veronica beccabunga. In 1996 a small amount of the invasive alien Hydrocotyle ranunculoides became established in the narrow channel between the bank and the island. In spring coltsfoot Tussilago farfara is common, and in early summer much of the river bank is brightened by masses of wild turnip Brassica rapa ssp. campestris. Later it is lucerne Medicago sativa ssp. sativa that is much in evidence. At the very southern end of the sewage works, a metal gate which now remains permanently open gives access to and from a riverside walk that continues to join the Alders Brook as far as the railway lines from Liverpool Street station. The view from the river bank from just beyond the gate, particularly looking north towards Wanstead Park, is surprisingly rural for east London, and spoilt only by the overhead power-lines. As this newly formed addition to Epping Forest develops, changes will occur in the species of plants growing there; it is hoped this record will be useful for future comparisons. Sadly, inadequate information is available to describe the frequency of individual species in the list that follows. In many instances, only the grid-square in which a plant has been found is given, whereas in others some indication to the actual location is shown. An indication is given of the dates or years when a plant species was recorded, and to some extent present status. The sequence of plants in the list follows the order and nomenclature of Stace (1991). The letters and numbers after some of the entries refer to the squares shown in Fig. 1, each square being 0.25 x 0.25 km. Acknowledgements Acknowledgments are due to Ted Godden and to Jennifer Charter for bringing to my attention certain plants, birds and animals. Also to Mr J.I. Besent, Superintendent of Epping Forest, and to the previous Deputy Superintendent, Peter Burman who investigated and discussed the potential of the area for becoming part of Epping Forest. Thanks are also due to an anonymous referee for several useful comments and corrections. References Ferris, P.R., 1980. The flora of southern Epping Forest. Part 1: Wanstead Park. The London Naturalist 59: 8-21 Plant, C.W., 1980. Redbridge (Southern) Sewage Treatment Works: Report on the Flora, Fauna and Ecological Value of this site. Biological Records Centre, Passmore Edwards Museum. Stace, CA., 1991. New Flora of the British Isles. Cambridge University Press.