336 DICOTYLEDONOUS PLANTS. 



1. C. sulcata Nutt. : leafets generally 9, obovate-lanceolate, acumi- 

 nate, serrate, pubescent beneath, terminal one subsessile and attenuate 

 at base ; fruit roundish, 4-angled ; nut oblong, slightly compressed, 

 conspicuously mucronate. Juglans sulcata Willd.J. mucronata Mich. 

 and ./. laciniosa Mich.f. ' , 



HAH. Fertile soils. N. Y. -to Car. April, May. T?. A large 



tree. 'Leaves pinnate, with 7 9 leafets. Sterile aments 3-part- 



. ed, very long, peduncled. Nut large, oblong, with a very thi k 



4-parted pericarp. This, like most of the species, is valuable 



for fuel. Thick Shell-bark Hickory. 



2. C. alba Nutt. : leafets 5 7, on long petioles, oblong-lanceolate, 

 acuminate, sharply serrate, villous beneath, the terminal one sessile ; 

 aments filiform, smooth ; fruit depressed-globose ; nut compressed, 

 oblique. Juglans alba Mich. J. compressa IVtfld. J. squamosa Mich.f. 



HAB. Fertile woods.. Can. to Car. and W. to ]Vfiss. April, 



May. . A very large and valuable tree, with the bark'sepa- 



'^rr . . rating in large flat scales or plates. Nut with a thinner shell 



'f than that of most other species and of a fine flavor ; pericarps 



* thin, globose, depressed at the summit. Timber mucn prized 



in-consequence of the fineness of the grain and the elasticity of 



. the fibre. Shell or Shag-bark Hickory. 



3. C. tomentosa Nutt. : leafets* generally 79, oblong-lanceolate, 

 acuminate, smooth, slightly serrate, pubescent* and scabrous beneath ; 

 terminal one nearly sessile ; ament filiform, very long, tomentose ; 

 fruit subglobose, smooth; pericarp very thick; nut somewhat 6-angled, 

 the shell very thick and hard. Juglans tomentosa Mich. J. aUta Linn. 



b. maxima. Nutt.: fruit twice the ordinary size, as large as an ap- 

 ple. 



HAB. Fertile woods. N. Y. to Geor. April, May. ^>. A 

 large tree. Leafets sometimes 5, but generally 7, very pubes- 

 cent beneath. Fruit large. Nut compressed, somewhat oval, 

 . with 4 prominent angles, and 2 obscure ones on the ends, thick 

 shelled and hard. Timber valuable. Var. b. is found near Phi- 

 ladelphia. Common Hickory, 



4. C. amara Nutt. : leafets. generally 9, ovate-oblong, acuminate, 

 sharply serrate, smooth on bokh sides ; fruit subglobose ; nut smooth, 

 mucronate, with- the shell fragile. Juglans amara Mich. Hicorius 

 amara Raf. . 



HAB. Dry fertile woods. Can. to Car. May. *?. A large 

 tree; Lenfets 9, sessile, with the nerves and midrib pubescent. 

 Nut small, almost obcordate, with bitter and astringent kernels, 

 Ofleji confounded with the next apecies. 



Bitter-nut. Swamp Hickory. 



t>. C. porcina Nutt. : leafets generally 7, lanceolate, acuminate, ser- 

 rate, smooth on both sides ; fruit oblong- globose or obcordate ; nut 

 smooth, very hard. Juglans porcina Midi. J. obcordata and J. glabra 



ivm. 



HAB. Fertile woods. N. Y. to Geor. May. l? A very large 



