76 



souri. The species is found in all parts of the State, although the dis- 

 tribution of the varieties has not been worked out. The habitat of 

 this species is high ground, and only rarely is it found in low ground. 

 It prefers hills, slopes, base of the terraces of streams, and in the 

 northern part of the State gravelly ridges and sandy soil. In all of its 

 range it is usually associated with white and black oak. It is in- 

 frequent in the southern part of the State but north of the Wabash 

 River it becomes more frequent and in some places it becomes common 

 to very common. It is a common tree in Wells County north of the 

 Wabash River and in the northern part of Lagrange County, and in 

 both places a wide range of forms occur, some of which are not covered 

 by the preceding description. No one of our trees offers a better op- 

 portunity for intensive study than this hickory. 



Remarks. Text books call this species the small-fruited hickory. 

 It is not commonly distinguished from the other hickories, but in 

 Wells County where it is common the boys call it "Ladies' Hickory." 



8. Carya Buckleyi variety arkansana Sargent. 1 Plate 29. 

 Medium sized trees, bark tight, dark, deeply furrowed; mature twigs 

 more or less pubescent, reddish brown; terminal buds ovoid, about 

 8 mm. long, thickly covered with yellow scales, and more or less 

 pubescent; leaves 2-3.5 dm. long, rachis permanently pubescent; 

 leaflets 5-7, prevailing number 7, lanceolate, terminal one about 15 cm. 

 long, tawny pubescent on unfolding, more or less glabrous at maturity ; 

 fruit ellipsoid to slightly obovoid, very aromatic, about 3.5-4 cm. long, 

 covered with yellow scales; husk usually splitting to below the middle, 

 3-4 mm. thick; nut oblong to slightly obovoid, 3-3.5 cm. long, scarcely 

 compressed, rounded at each end, the four ridges faint except at the 

 apex; shell thick, about 2 mm. at the thinnest point; kernel sweet; 

 wood same as the white hickory which it most closely resembles. 



Distribution. Southwestern Indiana, south in the Mississippi 

 Valley to Louisiana and Texas. Known in Indiana only from one tree 

 in Knox County on the sand ridge on the east side of what was formerly 

 a cypress swamp, about two miles north of Decker. The soil is the 

 Knox sand. It is associated with black and black jack oaks. 



Remarks. The description has been drawn from ample material 

 from this single tree. 



iBot. Gaz. 66:249:1918. 



