tokens: The wood is derived from the calcareous Ash-Wych Elm ( southern variant ) type but has been much planted with non-native species mainly Beech ( `` Fagus sylvatica '' ) and Sycamore ( `` Acer pseudoplatanus '' ) but with some Horse Chestnut ( `` Aesculus hippocastanum '' ) and Cypress trees `` Cupressus '' .