. North American trees : being descriptions and illustrations of the trees growing independently of cultivation in North America, north of Mexico and the West Indies . Trees. Pecan 225 husk very thin, about i mm. thick, yellowish scurfy, splitting to near the base into 4 valves; nut pointed at each end, smooth, scarcely if at all grooved, brown; the shell is very dark, 3 mm. thick or more, 2-celled at the base by a very thick par- tition; seed small and sweet, the cotyledons nearly entire. The wood is hard, tough, and very strong, close-grained, light brown; its specific gravity is about
. North American trees : being descriptions and illustrations of the trees growing independently of cultivation in North America, north of Mexico and the West Indies . Trees. Pecan 225 husk very thin, about i mm. thick, yellowish scurfy, splitting to near the base into 4 valves; nut pointed at each end, smooth, scarcely if at all grooved, brown; the shell is very dark, 3 mm. thick or more, 2-celled at the base by a very thick par- tition; seed small and sweet, the cotyledons nearly entire. The wood is hard, tough, and very strong, close-grained, light brown; its specific gravity is about It is used for fuel and for other purposes in which hickory is desirable. The leaves of this tree are the most lustrous of the Hickories. It should be a most desirable tree for parks and lawns in the southern States, in which, however, it is very seldom seen at the present time. 2. PECAN —Hicoria Pecan (Marshall) Britten • Juglans Pecan Marshall. Carya olivajormis Nuttall. Carya Pecan C. K. Schneider A very handsome tree, the largest of Hickories, native of rich, moist soils of river valleys from Indiana to Iowa, Missouri and Kansas south to Alabama and Texas, attaining in its greatest development in Texas a height of about 50 meters, with a trunk diameter of 2 m. The trunk is large, straight and tall. The branches are stout, short and little spreading, in the forest forming an oblong or inverted cone- shaped head; in the open the lower branches are spreading, the tree becoming round-topped. The bark is to 4 cm. thick, deeply but narrowly furrowed into irregular, rough, angular, light red- dish brown ridges. The twigs are stout, pale and loosely hairy, soon becoming smooth, reddish brown, and bearing large oblong 3-lobed leaf scars. The terminal winter buds are about 12 mm. long, sharp-pointed, covered by narrow, hairy scales, which do riot increase very much in size as the. Fig. 183. — Pecan. bud expands; the lateral buds are small, yellowish hairy, two together, bo
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