JCJGLANDACE^. 838 



Jb. NIGRUM. 



Procumbent; branches smooth ; /frtt>es imbricated, linear-oblong, obtuse at 

 cacii end, nearly smooth, with arcvojute margin. A small, prnst'iate, alpine 

 Bhrub, found on the granite rocks ot the Wliite Mts.of N. H., and the calcare- 

 ous mountains of Vt. The stem is 1 to 3 or 4 feet long, much branched and 

 closely covered all around with evergreen leaves which are J— J inch long 

 and a line wide. Flowers very small, "reddish, crowded, in the axils of the 

 upper leaves. Berries black, not ill-tlavored. May, June. Cruicherry. 



ORDER CXXV. JUGLANDACEtE. The IValnut Tribe. 



Flowers mnncccious. Sterile in nmi.-iits. Corollo 0. 



Ca/.— Membranaceous, oblique, irregular. Sta. indefinite (3—36). 



P'ertile in small clusters. Corolla or sometimes present and 3— 5-petaled. 



fW.— Tube adlierent, limb 3— 5-parted. ['^tig. 1— d, much dilated. 



Oca.— 1-celled (partially 2— 4-celled). Ovule soliiarv, erect. St7/lcs 0—2, very short. 



■if''''-— l^rupaceous, ] -celled, whh 2 — 1 imperiecl parutions ; endocarp bony. 



iSf-/. — 2 — i-lobed, without albumen, oily. 



Trees, mostly North iVmericun, -^villi rilternate, unpquallypinnate leaves and no stipule!. 



Fro]jertie!>. The well known trml utib,j butternut, ivalnut. pccr.an-nut,Sj-c., is sweet and 

 wholesome, abouudinij in a rich, dr.\ in;,' oil. The epicarp, and even the integumealoi'the 

 kernel are very astringent. The timber is highly valuable. 



Genera. 



j4-cloft. Leaves 15— 21 -foliate. . . . Jiiglans. 1 

 Corolla of the fertile flowers ( none. Leaves 5,— 9-foliale Carya. 2 



1. JUGLAiXS. 



Sterile Jl. in an imbricated, simole anient; caljx scale 5 — 6- 

 parted. soniewiial bractcate at base; stamens about 20. 

 Ferlilrjl. — Calyx 4-ciert, superior; corolla 4-parted ; stigmas 

 2; fruit drupaceous, epicarp spongy, indehiscent, endocarp 

 rugose and irregularly i'urrowed. 



Lat. Jovis fflaus; i. e. tlio nut of Jove, a name given it by way of eminence. 



1. J. CINE'REA. L. J. cathartica. JJfz./. 

 Leaflets numerous (15 — 17), lanceolate, serrate, rounded at the base, soft- 

 pubescent beneath ; pctiijlcs villous ; fruit oblong-ovate, with a terminal, 

 obtuse point, viscid, hairy ; n?/.c/cM,s oblong, acuminate, deeply and irregularly 

 furrowed. The butternut is found throughout the N. England, Middle and 

 Western States, and Canada, growing on elevated river-banks and on cold, 

 uneven, rocky soils. It is 40 — HO feet high, with a large, but short trunk. 

 The branches are horizontal and unusually wide-spreading, forming a very 

 large head, ijcaves 12 — '20 inches long, consisting of 7 or 8 pairs of leaflets 

 with an odd one. Barren flowers in long atnents ; fertile in short spikes. 

 The kernel is oily, pleasant-flavored and well known in N. England. The 

 wood is of a leddish hue, liglit, and is considerably used in pannelino' and 

 ornamental work. From the bark is extracted an excellent cathartic. April. 

 May. Butternut. 



2. J. NIGRA. 



Leaflets numerous (15 — 21), ovate-lanceolate, serrate, subcordate, tapering 

 above ; petioles and under side of tiie leaves subpubescent ; fruit globose, with 

 scabrous punctures. The black walnut is a common forest tree in the Middle 

 and Western States, but is scarcely found in the Northern. It aiises GO — 70 



