336 JUGLANDACE-ffi. 



1. JUGLANS. Linn.—Wolnnt 

 (From, the Latin Jovis glans, the nul of Jupiter ; on account of its excellence.) 

 Monoecious. Sterile Fl. Ament imbricate ; scales mostly 

 5-parted, sometimes bracteate. Perianth 5- or 6-parted. Sta-^ 

 mens 8 — 40. Fertile Fl. Perianth double ; the outer one 

 short, 4-toothed; the inner one 4-parted. Styles 2, very short. 

 Stigmas 2, somewhat clavate. Drupe fibrous-fleshy, indehiscent. 

 Nut rugose and irregularly furrowed. 



1. J. nigra Linn.: leaves pinnate; leafets numerous, ovate-lanceolate, 

 serrate, subcordate, tapering to the summit, the under surface and petioles 

 slightly pubescent ; fruit globose, roughly dotted, spongy ; nut nearly glo- 

 bose, corrugated. 



Fertile woods. N. Y. to Flor. W. to Miss. April, May.— A tree, 30—60 

 feet high, with a large spreading top. Leaves pinnate, with from 15 — 21 leafets. 

 Sterile aments axillary, cylindric, pendulous. Timber compact, fine grained, 

 heavy and dark colored when exposed to the air. Black W/alnut. 



2. J. cinerea Linn. : leaves pinnate ; leafets numerous, oblong-lanceo- 

 late, serrate, rounded at the base, softly pubescent beneath; petioles villous; 

 fruit ovoid-oblong, coriaceous, hairy and viscid ; nut elliptic-oblong, acumi- 

 nate, conspicuously sculptured. J. catharlica Mich. f. 



Woods., Can. toGeor. W. to Miss. April, May. — A large tree. Leaves pin- 

 nate, with 15 — 17 pubescent leafets. Habit and fructification very similar to 

 the preceding, but xhe fruit is oblong, with a tapering protuberance at the sum- 

 mit, and the nut much more deeply and irregularly sculptured. The inner bark 

 yields a laxative extract. Butternut. White Walnut. 



2. CARYA. A^w^^.— Hickory. 

 (From the Greek Kapva^ an ancient name of the Walnut.) 

 Monoecious. Sterile Fl. Aments mostly in threes, slender, 

 imbricate; scales 3-parted. Stamens 3 — 8. Anthers sessile, 

 hairy. Fertile Fl. Perianth single, 4-cleft. Drupe cori- 

 aceous or somewhat fleshy, 4-valved. Nut oval, somewhat 

 4-sided, smooth. 



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

 serrate, pubescent beneath, terminal one subsessile and attenuate at base ; 

 fruit roundish, 4-angled; nut oblong, slightly compressed, conspicuously 

 mucronate. Juglans sulcata Willd. J. mitcronata Mich, and J. laciniasa 

 Mich. f. ^ 



Fertile soils. N. Y. to Car. April, May.— A large tree. Leaves pinnate, 

 with 7 — 9 leafets. Sterile aments 3-parted, very long, peduncled. Nut large, 

 oblong, with a very thick 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, obovate and oblong-lan- 

 ceolate, acuminate, sharply serrate, villous beneath, the terminal one ses- 



