146 ^ Eleventh Annual Report 



6. Hicoria alba (Linnseus) Britton. White Hickory. {Carya 

 alba (Linnaeus) K. Koch). Plate 31. Bark of trunk tight, never 

 scaly, fissured, furrows shallow, hght gray; twigs at first densely 

 hairy, becoming at the end of the season reddish-brown, finally a 

 dark gray, remaining more or less pubescent during the season; 

 winter buds ovoid, the terminal one at time of fruiting about 12 

 mm. {y2 inch) long; outer scales broadly ovate and pointed, hairy, 

 dark or reddish-brown; leaves fragrant, 2-3.5 dm. (8-14 inches) 

 long, main axis hairy; leaflets 5-9, generally 7, sessile or the terminal 

 one on a short stalk, oblong-lanceolate to obovate-lanceolate, taper- 

 pointed at the apex, hairy when they unfold, becoming at maturity 

 firm, smooth and a dark yellow green above, paler or brownish be- 

 neath, and remaining more or less densely hairy, especially along the 

 veins; fruit subglobose, elliptic, generally about 4 cm. (IJ^ inches) 

 long, the sutures depressed, husk thick, splitting to the base or 

 nearly so; nut globose, or elliptic, rounded at the base, rounded or 

 short-pointed at the apex, generally smooth, with the angles ob- 

 scure except at the apex; shell thick; kernel sweet. 



Distribution. Southern Ontario south to Florida and west to Texas 

 and Kansas. Well distributed throughout Indiana but nowhere 

 abundant. In the northern part it is rather rare, becoming more 

 or less frequent in the southern part especially in the southwestern 

 part. It is generally found in drier situations than the preceding 

 species and of the hickories it is the most frequently associated with 

 Hicoria glabra (Black Hickory). 



The published records of the distribution are as follows: Cass 

 (Benedict and Elrod); Clark (Baird and Taylor) and (Smith); 

 Dearborn (Collins); Fountain (Brown); Franklin (Meyncke); Gib- 

 son (Schneck) ; Hamilton (Wilson) ; Jefferson (Coulter) and (Young) ; 

 Knox (Ridgway); Kosciusko (Clark) and (Scott); Marion (Wilson); 

 Miami (Gorby); Posey (Schneck); Vigo (Blatchley); Wabash (Ben- 

 edict and Elrod). 



Additional records are : Tippecanoe (Coulter) ; Gibson and Posey 

 (Deam). 



Economic uses. Wood and uses similar to that of the shellbark 

 hickory. 



7. Hicoria glabra (Miller) Britton. Black Hickory. Pignut 

 Hickory. {Carya glabra (Miller) Spach.) Plate 32. Bark of 

 trunk generally a dark gray, varying to nearly black, from whence 

 its most common name, fissured, furrows narrow and rather deep 

 on old trunks, the ridges rather broad and somewhat scaly on old 

 trunks but not flaking off; twigs slender, often hairy at first, becom- 



