SUGAR MAPLE; ROCK OR HARD MAPLE (Acer .saccharum, Marsh). 60 to 120 feet. Handsome, compact, symmetrical tree with many upright limbs, forming an oval head, which in old age becomes more spreading. Bark gray, deeply fissured, scaly; limbs pale; twigs reddish brown. Wood heavy, hard, strong, red-brown, tough, close-grained, used for floor ing, interior finish, saddles, turned wares and fuel. Leaves heart-shaped, deeply cleft by 2 wide sinuses into 3 main lobes, which are toothed and wavy, tapering to apex; 4 to 5 inches long and wide, smooth, dark green, with paler lining, turning yellow and red in autumn. Stalks 2 to 3 inches long,
slender. Flowers with leaves in late spring, in opposite fas cicles, hairy, long-stemmed, greenish, small flowers, without petals, moncecious or polygamous. Fruit, clustered keys, smooth, plump seeds with wings 1 inch long, slightly diver gent. Dist.: Newfoundland to Great Lakes; south to Flor ida; west to Nebraska and Texas. Sap makes maple sugar. Best of all maples.