242 BOTANICAL GAZETTE [SEPTEMBER 
thick and oblong much compressed nuts narrowed at apex. The 
branchlets of C. pallida are slender, glabrous or pubescent, and the 
winter-buds are acute or obtuse, and are covered with yellow scales. 
When C. pallida grows in rich soil it sometimes attains a height of 
30-35 m. and forms a trunk 6 m. in diameter. On such trees the 
bark is pale and only slightly furrowed. On dry stony ridges trees 
more than 10-15 m. tall are not common, and the bark of trees 
growing in such soil is sometimes sects black, very rough with 
prominent ridges. 
Carya pallida grows in New Jersey in sandy soil in the neighborhood of 
Cape May. It is common in sandy soil in southern Delaware and in the 
southern part of the Maryland peninsula. It is common in Gloucester and 
James City counties, Virginia, where it often grows in rich soil and attains its 
largest size. It occurs in Isle of Wight County, Virginia, and is common in 
the Piedmont region of North and South Carolina, and in the western parts of 
these states ascends into mountain valleys up to elevations of 700 m. above 
the sea-level. It is common in northern and central Georgia, and occasionally 
reaches the Georgia coast. It grows at Bainbridge, southwestern Georgia, and 
in Leon and Gadsden counties, Florida. In Alabama it is the common hickory 
on the dry gravelly and poor soil of the upland table lands and ridges of the 
central part of the states, and extends into the southwestern counties. The 
western stations from which I have seen specimens of this tree are Chattanooga, 
Tennessee, Yazoo City, Mississippi, where it is common on the bluffs of the 
Yazoo River, and northeastern Louisiana (near Kentwood, Tangipahoa Parish, 
Cocks). 
Trees of this hickory can easily be recognized at a distance by the pale color 
of the under surface of the leaves, and southward by the dark, deeply fissured 
bark of the trunk, which is not found on other hickories in the southeastern 
states. Formerly I considered that C. pallida was the same as C. villosa from 
Allenton, Missouri, and other authors have adopted this view, but further 
observations show that it can be distinguished from that tree by the absence 
of the rusty brown pubescence from the unfolding leaves and young branchlets, 
by the silvery scales on the young leaves, by the pale color of the under surface 
of the leaflets, and by the thicker involucre of the larger often ellipsoidal or 
globose fruit. 
12. CARYA GLABRA Sweet.—The name pignut, which should be 
confined to Carya cordiformis, has been generally applied to many 
trees with smooth or slightly scaly bark, slender branchlets, small 
winter-buds, and pear-shaped or globose fruit. The husk of the 
fruit of these trees varies in thickness; it remains closed or opens 
