By Meek, Cyril
By National Council for the Conservation of Plants and Gardens
By Elizabeth Prince, John Head
By William Crossing
By Nick Jones
By Sue Gearing
By Helen Joy Harris
By Clark, Francis Gordon, Swan, Jane
By John Powls, Carol Ballenger
By Sturt, John
By Mildren, James
By Trundley, Ruth, Edington, Helen
By Sparks, Jon
By Marsh, Terry
By Allan, John, Timms, Simon
By Ravilious, James
By Butler, Simon, Exeter