Pollards,ï¿½called by the Japanese Bo-mono,ï¿½are not much favoured, though one or two may be introduced in the foreground of a garden, near the dwelling. In Tea Gardens, however, the use of pollard trees is very common. A prejudice exists against the Shichiku,ï¿½a kind of purple-leaved bamboo, supposed in legend to have derived its unusual colour from the tears of an inconsolable heroine of Chinese legend; also against all fragile reeds and rushes easily injured by the wind, and vegetation possessing real or imaginary poisonous properties. Terms are applied to the principal trees or tree-clumps indicating their relative functions and importance in the composition. These will be explained when treating in detail of the arrangements for different styles of gardening.