Roy Vickery will be leading a walk Forgotten Uses of our Native Flora at Cranham Marsh Nature Reserve – http://www.essexwt.org.uk/reserves/cranham-marsh – London Borough of Havering, nearest tube station Upminster, starting at 7.00 and lasting for approximately two hours.  Collection in aid of local Green Party funds; for details of starting point, etc., please contact melanie.collins@greenparty.org.   All welcome.