SOUTHERlSr APPALACHIAN REGION. 



103 



Honey Locust ( Gleditschia triacanthos) is a tree reaching a height of 

 60 or 70 feet and a diameter of 24 inches. It was introduced into this 

 region from middle Tennessee, but is thoroughly naturalized and 

 propagates freely in old tields and waste places. The wood is not used, 

 though it is tough, strong, and durable. 



Coffee Tree ( Gymnocladus diocus) is a small tree, seldom more than 40 

 feet in height. It occurs in fertile valleys at the foot of the western 

 slope of the Smoky Mountains. The wood is not much used. It repro- 

 duces well. 



Yellow-wood [Cladrastis luted) is seldom more than 30 feet in height 

 and a foot in diameter. It occurs in rich hollows at a low elevation at 

 the southwestern end of the Appalachians. The hard, yellow wood 

 takes a tine polish. 



Locust {Rohinia pseicdacacid) is a slender tree sometimes 100 feet 

 in height and 30 inches in diameter. It is frequent below 4,000 feet 

 elevation on rather dry, yet shaded and deep soil. It seeds abundantly 

 and reproduces freel}^ by sprouts, suckers, and seeds. The hard, yel 

 low wood is very durable in contact with the soil or on exposure, and 

 is extensively used for fence posts, sills, bridge timber, and insulator 

 and ship pins. A most valuable tree, but it is often attacked by a 

 fungus which destroys the heartwood. 



Clammy Locust {Rohinia viscosa) is a small tree, 20 to 30 feet in 

 height, with a short stem, or generally a large shrub found wild in this 

 area only in its southeastern part. It is highh^ prized as an orna- 

 mental plant on account of the beaut}^ of its flowers, and is extensively 

 cultivated. Its wood has no uses. It seeds frequently and reproduces 

 freely both by seed and suckers. 



Prickly Ash {Xanthoxylum elava-herculis)^ becoming 25 feet in height 

 and 1 foot in diameter, is frequent along streams. The wood is not 

 used. An extract from the bark is used medicinally. It seeds abun- 

 dantly and reproduces freely. 



Ailanthus {Aikmthus glandmlosa) is an introduced Asiatic tree which 

 reaches a height of 40 feet and a diameter of 10 feet. It is extensively 

 naturalized along some of the streams, whei'e it propagates freely by 

 means of suckers, and forms dense thickets. The wood is hard, dura- 

 ble, and valuable, but is not used. The growth is rapid. 



Staghorn Sumach {Rhus hirta) is a small tree, seldom 30 feet in 

 height, growing along streams or in waste places, especially at high 

 elevations. The bark yields a superior tannin for kids, but is not used 

 locally. 



Holly {Llex opaca) is a small evergreen tree, rarely more than 50 

 feet in height and 1 foot in diameter, which grows chiefly in sandy 

 flats along streams below 2,000 feet elevation. The wood is hard, 

 white, and fine grained, and is used to some extent in cabinetmaking. 

 It seeds often and abundantly, and reproduces well. It is much prized 

 as an ornamental tree. 



