740 ARBORETUM ET FRUTICETUM BRITANNICUM,. 
Engravings. Willd. Arb., t.7.; Mich. Arb., 1. ¢.8.; North Amer. Sylva, t. 37.; and our fig, 1425. 
Spec. Char., §c. Leaflets, in a leaf, 7—9; obovate-acuminate, argutely ser- 
rate; downy beneath. Fruit roundish, having 4 longitudinal ridges that 
extend from the tip to the middle, and 4 intervening depressions, or furrows. 
Husk dividing from one extremity to the other, in the line of the furrows, 
into 4 equal valves. Nut subglobose, slightly compressed, having a long mucro 
at the tip, anda shorter stouter one at the base; yellowish. Bark exfo- 
liating in long narrow strips. (AMichr.) A large deciduous tree. Alleghany 
Mountains, in fertile valleys. Height 60ft. to 80 ft. Introduced in 1804. 
Flowers greenish; May. Fruit with a greenish husk, enclosing a yellowish 
nut ; ripe in November. 
The Jeaves vary in length from 18 in, to 20in., and are composed of from 7 
to 9 leaflets ; whereas in C. alba, the shell-bark hickory, the leaflets are in- 
variably 5. The barren catkins are long, glabrous, filiform, and pendulous ; 
3 being united on a common petiole, attached to the bases of the young shoots, 
The fertile flowers appear, not very conspicuously, at the extremity of the 
1425. C. suleata. * 
shoots of the same spring. They are succeeded by a large oval fruit, more 
than 2in. long, and 4 or 5 inches in circumference. It has four depressed 
seams, which, at complete maturity, open throughout their whole length for 
the escape of the nut. The shell is thick, and of a yellowish hue; while that 
of the C. alba is white. 
* 7. C. porci'na Nutt. The Pig-nut Carya, or Hickory. 
Identification, Nutt. Gen. N. Amer. Pl., 2. p. 222. 
Synonymes. Jiglans porcina « obcordata Miche. Arb. 1. 
p. 206.; J. porcina var. with fruit round. and somewhat 
rough, Michr. North Amer. Sylva 1. p.196.; J. obcor- 
data Miihlenb. in Nov. Act. Soc Nat. Scrut. Berol. 3. 
p. 392.; Pig-nut, Hog-nut, Broom Hickory. 
Engravings. Michx. Arb., 1. t.9. f. 3, 4.3; North Amer. 
Sylva, 1. t. 38. f.3, 4.; Dend. Brit., t. 167. ; and our 
Jigs. 1426, 1427. and 1428. 
Spec. Char, Sc. Leaflets 5—7 in a leaf, 
ovate-acuminate, serrate, glabrous, dotted 
beneath with dots of resinous matter ; ter- 
minal leaflet sessile. Nut obcordate. Fruit 
round, somewhat rough. (Michr.) See 
our fig. 1426. a, and jig. 1428. a. A lofty 
tree. North America, in the middle, 
western, and southern states, on the bor- 
