PIG NUT; WHITE HICKORY (Hicoria glabra, Britt). 50 TO 100 feet. Stately, round-headed tree, with narrow, ir regular head of twisted, drooping branches. Twigs soon smooth, reddish, with leaf-scars oblong or half-circles. Buds small, reddish, with leathery scales. Bark gray with firm, close surface checked by small fissures into plates. Wood heavy, hard, tough, strong, elastic, brown with white sap wood, used for tool handles, wagons, and farm implements, and for fuel. Leaves alternate, smooth, dark yellow-green, 8 to l inches long, of 5 to 7 leaflets, pale beneath, end ones larger than basal pair. Flowers staminate catkins axillary, 4 to 7 inches long, in clusters of Ws; pistillate in 3- to 5-flowered spikes, greenish, on ends of twigs. Fruit pear-shaped or glo bose, usually thin-shelled, obscurely 4-angled nut, with bitter, white kernel. Husk splits halfway to base, usually. Dist.: Eastern States to Nebraska and Texas. Valuable lumber and shade tree.
BIrrERNUT; SWAMP HICKORY (Ilieoria minima, Britt) 60 to 100 feet. Tall, straight tree with broad, symmetrical
head of yellow-brown, pale-dotted twigs, set with slender, yellow, granular buds. Bark close, scaly, red-brown, thin. Limbs smooth. Wood tough, heavy, hard, brown, close grained, used for ox-yokes, hoops, and fuel. Leaves 6 to 10 inches long, of 7 to 11 willow-like, leathery, bright green, pale lined leaflets, on downy, slender stems. Flowers in May, staminate catkins in 3's, 3 to 4 inches long; pistillate on ter minal peduncles, 1- to 3-flowered, with spreading stigmas, green. Fruit globular or pear-shaped, about 1 inch long, often thicker, in thin, golden-scurfy husk, parting along the four winged sutures, sometimes two reaching to base, never all four; shell thin, not ridged, but marked with irregular, dark lines; kernel white, bitter. Dist.: Maine and Ontario to Florida; west to Minnesota and Texas. Valuable shade and ornamental tree. Fastest growing hickory