9.82] 



CLASSIFICATION AND DESCRIPTION 



143 



serrate or almost entire, the lower surface 

 as well as the twigs and the catkins to- 

 mentose when young. Fruit globular or 

 ovoid, usually with a, very hard, thick husk 

 slightly united at base. Nut somewhat 

 hexagonal, with a very thick shell and 

 well-flavored kernel. A tall, slender tree, 60 

 to 100 ft. high, with a rough deeply furrow- 

 ed, but not 

 shaggy bark. 

 Common on 

 dry hillsides 

 throughout. 



C. microcarpa. 



4. Carya 



microcarpa, C.tomentbsa. 



Nutt. (SMALL MOCKERNUT.) Leaflets 

 about 5 (5 to 7), oblong-lanceolate, 

 long-pointed, finely serrate, smooth, 

 glandular beneath ; buds small, ovate. 

 Fruit small, subglobose, with a thin 

 husk; nut not sharply angled, with a 

 thin shell ; edible. A large tree, 70 to 



90 ft. high ; New- York, Pennsylvania, and westward. 



5. C&rya porcina, Nutt. (PIGNUT. 

 BROOM-HICKORY.) Leaflets 5 to 7 (usu- 

 ally 7), oblong-ovate, acuminate, ser- 

 rate, smooth. Fruit pear-shaped to 

 oval, somewhat rough, splitting regu- 

 larly only about half-way. Nut large 



(iy 2 to 2 



in. long), 



brownish, 



somewhat 



obcordate, 



with a thick, hard shell, and poor, 



bitter kernel. Tall tree, 70 to 80 ft. 



high, with dark-colored heart-wood, 



and rather smooth bark. Common on 



ridges. 



6. C&rya amara, Nutt. (BITTERNUT. 

 SWAMP-HICKORY.) Leaflets 7 to 11, lan- 



C. porcina. 



