LXVII. /UGLANDA'CE^E : CA RYA. 



735 



New England to Florida, in fertile soil in woods. Height 60 ft. to 100 ft. 



Introduced in 1656. Flowers greenish; April and May. Fruit with a 



green husk, enclosing a brown nut. 

 Varieties, None are in cultivation ; but a hybrid between this species and 



J. nigra has been noticed in p. 733. 



The growth of the tree is remarkably quick, more so than that of the Eu- 

 ropean walnut. At 8 or 10 years of age it begins to bear, and age increases 

 its fertility. No tree will grow under its shade, and even grass is injured by 

 it. In 40 years, in good soil, it will attain the height of from 50 ft. to 60 ft. 

 The heart-wood, which is black, remains sound for a long period, when ex- 

 posed to heat and moisture ; but the sap-wood speedily decays. When pro- 

 perly seasoned, the wood is strong, tough, and not liable to warp or split. It 

 is never attacked by worms, and has a grain sufficiently fine and compact to 

 admit of a beautifurpolish. The tree is universally raised from the nut, which, 

 after being imported, ought to be sown immediately, as it seldom retains its 

 vital power more than six months after it has ripened. 



y- 3. J. CINE'REA L. The grey-branched Walnut Tree, or Butter-nut. 



Identification. Lin. Sp. PI., 1415. ; Willd. Sp. PI., 4. p. 456. ; Pursh Sept , 2. p. 636. 



Synonym.es. J. cathkrticn North Amer. Sylva, 1. p. 160165. t. 31. ; J. oblonga Mill. Diet. No. 3. ; 



Oil-nut, Whito Walnut, Amer. ; Noyer cendre, Fr. ; graue Walnuss, Ger. 

 Engravings. Michx. Arb., 1. 1. 2. ; Michx. North Amer. Sylva, t. 31. ; and our Jig. 1418. 



Spec. Char., fyc. Petiole villous. Leaflets, in a leaf, 15 17; lanceolate, 



rounded at the base, serrate with shallow teeth ; tomentose beneath ; lateral 



ones sessile. Fruit oblong-ovate, 



with a tapered tip, downy, co- 

 vered with viscid matter in small 



transparent glanded hairs, pen- 

 dulous on a flexible peduncle. 



Nut oval, with an acuminate 



tip, very rough with prominent 



irregular ridges. (Michx.) A 



large deciduous tree. Canada to 



Virginia, and on the Alleghany 



Mountains. Height 30 ft. to 60ft. 



Introduced in 1656. Flowers 



greenish; April and May. Fruit 



a green husk, enclosing a brown 



nut ; ripe in October. 



This species grows with equal 

 rapidity, when young, as the J. 

 nigra ; but the trunk ramifies at a 

 less height; and the branches ex- 

 tending more horizontally than 

 those of most other trees, and 

 spreading widely, a large and flat 

 tufted head is formed, which gives 

 the tree, in America, more espe- 

 cially in exposed situations, a most remarkable appearance. 



GENUS II. 



1418. J. cinferea. 



Nuttall. THE CARYA, or HICKORV TREE. Lin. Sy*t. 

 Monce'cia Tetr-Hex-andria. 



Identification. Nutt. Geo, N. Amer. PI., 2. p. 220. ; Lindley Nat. Syst. of Bot., p. 180. 



