Stránka:book 1922.djvu/470

440 The Book of Woodcraft described under Poison Sumac. Its leaflets always three, are i to 4 inches long. Its berries are eagerly eaten by birds. "The juice of this plant is yellowish and milky, becoming black after a short exposure to the air. It has been used as marking ink and on lineu is indelible." {Emerson.) It grows everywhere in the open being found from Manitoba eastward and Texas northward. . ACERACE^ — MAPLE FAMILY Striped Maple, Goosefoot Maple or Moosewood. {Acer penn- sylvanicum) A small tree up to 35 feet high, in tall woods, called "striped" because its small branches have white lines. It is much eaten by the moose. Wood, brown, soft, close-grained, light. Leaves, 5 to 6 inches long. A cubic foot weighs 33 lbs.