The simplest variety of covered architectural seat is the latticed arbor for vines of various descriptions, with the seat underneath the canopy of foliage; this may with more propriety be introduced in various parts of the grounds than any other of its class, as the luxuriance and natural gracefulness of the foliage which covers the arbor, in a great measure destroys or overpowers the expression of its original form. Lattice arbors, however, neatly formed of rough poles and posts, are much more picturesque and suitable for wilder portions of the scenery.