:" Consequently, in such reserves, strict adherence to the rules of landscape gardening, with regard to the grouping of trees, etc ., had to be abandoned in favour of the formal lining of the paths with rows of umbrageous trees, and the planting in the background of dense masses of conifers, evergreen shrubs, fern trees, etc ., small flowering shrubs and bedding flowers being merely introduced to mask the unsightly aspect of the grass in such reserves during summer"