Bard

n.
  1. The exterior covering of the trunk and branches of a tree; the rind.
  2. Specifically, Peruvian bark.
    3. Bark bed .
    See Bark stove (below).
    Bark pit ,
    a pit filled with bark and water, in which hides are steeped in tanning.
    Bark stove (Hort.),
    a glazed structure for keeping tropical plants, having a bed of tanner's bark (called a bark bed) or other fermentable matter which produces a moist heat.