144 



TREES OF NORTH AMERICA 



long as the others. Winter-buds: terminal broadly ovate, acute or obtuse, \'-\' 

 long, two or three times as large as the axillary buds, the three or four outer bud- 

 scales ovate, acute, often keeled and apiculate, thick and firm, dark reddish brown 

 and pilose, usually deciduous late in the autumn, the inner scales ovate, rounded or 

 acute and short-pointed at the apex, light green covered with soft silky pubescence 

 on the outer, and often bright red and pilose on the inner surface, becoming I'-l^' 

 long and ^' broad. Bark '-f ' thick, slightly ridged by shallow irregular interrupted 

 fissures and covered by dark gray closely appressed scales. Wood very heavy, 

 hard, tough, strong, close-grained, flexible, rich dark brown, with thick nearly white 

 sapwood; used for the same purposes as that of the Shellbark Hickory. 



Distribution. Southern Ontario southward to Cape Canaveral and the shores of 

 Tampa Bay, Florida, and westward to eastern Kansas, the Indian Territory, and 

 eastern Texas; comparatively rare at the north, growing on ridges and less fre- 

 quently on alluvial river-bottoms; the most abundant and generally distributed of 

 the Hickory-trees of the south, attaining its largest size in the basin of the lower 

 Ohio River and in Missouri and Arkansas; the only Hickory in the southern mari- 

 time Pine-belt, growing in great abundance on low sandy hummocks close to the 

 shores of bays and estuaries along the coast of the south Atlantic and Gulf states. 



10. Hicoria glabra, Britt. Pignut. 



Leaves 8'-12' long, with slender glabrous petioles, and 5 or 7 or rarely 9 oblong 

 to obovate-lanceolate leaflets gradually or abruptly long-pointed at the apex, equally 



or unequally rounded at the base, sharply serrate, subsessile or short-stalked, thick 

 and firm, at first glandular-punctate and villose, becoming glabrous, dark yellow-green 

 above, paler and sometimes bright yellow or yellow-brown below, the upper 6'-8' 

 long and 2'-2' broad, and three or four times larger than those of the lowest pair. 

 Flowers: staminate in short-stalked scurfy pubescent aments 3'-7' long, yellow- 

 green coated with pale pubescence or tomentum, with bracts lanceolate, acute and 

 much longer than or ovate rounded and not longer than the calyx-lobes, and 4 stamens, 

 with nearly sessile ovate emarginate orange-colored anthers slightly hirsute above 

 the middle; pistillate in 2-5-flowered spikes, \' long, more or less prominently 

 4-ribbed, nearly glabrous or coated with scurfy pubescence or pale tomentum, their 



