104 MONOECIA. POLYANDRIA. 



Q. BANisTERi- Mx. ArJ). Leaves obovate-cuneiform, SorSlobed: cup sub-turbinate; nut sub-globose. 

 Synon. Q. ilicifolia. Ell. Eaton, &c. T'^w/g-o- Black Scrub Oak. Bear Oak. Barren Oak. 



Fl- Beginning of May. Fr. mat. Latter end of September. 



Hob. Dry, sterile hills: Barrens: frequent. 4 to 6 feet high, much branched. 

 Obs. A worthless little species; which I take to be the Q. nigra pumila, of Marshall. 

 1 1 Lobes not mucronaie. 



Q. 0BTUSIL0I3A. Mx. Arb . Leaves cuneate at base, lobes obtuse, dilated; cup hemispheric; nut oval. 

 Syno-n. Q. alba minor. Marsh. Q. stellata. Eaton. Fwigo— Barren White Oak. Post Oak. 

 Fl. Middle of May. Fr. mat. Middle of October. 



Hab. Sterile hills: Barren ridge: frequent. 20 to 40 feet high. 



Obs- The wood of this is very durable ; and is much valued for posts, &c. It is also esteemed for fuel. 



Q. ALBA. .Mx. Arb. Leaves pinnatifid-sinuate, lobes oblong, obtuse; cup craterate; nut ovate. 



Fm/°-o— White Oak. 



Ft. Middle of May. Fr. mat. Middle of October. 



Hab. Woodlands: every where common. 60 to 100 feet high. 



Obs. This is one of our finest, and most valuable forest trees; and often grovi^s to an immense size. 

 The timber is firm and durable — serving for many important purposes in the mechanic arts. The keels of 

 some of our largest national ships were procured from trees of this species, in this vicinity. The bark is 

 astringent, and tonic; and is frequently employed in the treatment of diseases. The acorns afford a nutri- 

 tious food for hogs. 



b. Leaves coarsely dentate— not lobed. 



Q. BicoLOR. Ph- Leaves oblong-obovate, white-tomentose beneath; cup hemispheric; nut oblong-ovate. 

 Sy7wn. Q- prinus discolor. Mx. Arb. Vulgo — Swamp White Oak. 



Fl. Middle of May. Fr. mat. Middle of October. 



Uab. Low grounds: along creeks: frequent. 40 to 60 feet high. 



Obs. There are, apparently, some varieties of this tree. It is not held in such high estimation as some of 

 the other species- 



Q. montAjVA. Ph. Leaves broad-obovate, downy beneath; cup turbinate; nut oblong. 

 Sft/non. Q- prinus monticola. M.r. ^ir&. Fy/g-o— Chesnut Oak. Rock Chesnut Oak. 



Fl- Middle of May. Fr. mat. Middle of October. 



Hab. Hilly, rocky woodlands: frequent. 50 to 70 feet high. 

 Obs. The timber and bark of this species are much esteemed. 



Q. CHINQUAPIN. Ph. Leaves obovate, and oblong, glabrous; cup hemispheric; nut ovate. 

 Syncn. Q. prinus chincapin. Mi: Arb. Q. prinoides. Willd. Eaton. Fw/gfo— Dwarf Chesnut Oak. 

 Fl. Middle of May. Fr. mat. Middle of October. 



Hab. Dry, sterile hills: Barrens: frequent. 2 to 6 feet high. 



Obs. I am sensible that my catalogue of our Oaks cannot be complete; but the foregoing are all that I 

 have ascertained with any degree of satisfaction. 



{^The Q. PHELLOs I have not found nearer to this place than the alluvial lands, in the neighborhood 

 of the river Delaware. Indeed, I have never observed it, growing native, in any other kind of soil. 



332. JUGLANS. Nutt. Gen. 760. 

 [Lat. formed iroraJovis Glans, the nut of Jove; on account of its excellence.] 

 Male, jflment imbricate. Ca/. a scale. Cor. 5 or 6 parted. S^amfji.s 18 to 36. 

 Fem. Cat. superior, 4 cleft. Cor. 4 parted. Styles 1 or 2. Drupe coriaceous, or spongy. Nut rugose 



J. NIGRA. Mx. Arb. Leaflets lance-ovate, serrate, narrowed above; fruit globose, scabrous-punctate- 



Fu/g-o— Black Walnut- 



Fl. Middle of May. Fr. mat. Beginning of October. 



Jiab. Rich woodlands; fence-rows, fcc. common. 30 to 60 feet high. 



Obs. The woodo'i this tree is valuable, and much used by cabinet makers, &c. The fruit is esteemed; 

 and the spongy pericarp is often employed as a domestic dye atuif- The tree exevts an unfriendly influence 

 upon many other plants, growing in its immediate vicinity. 



J. ciN£REA. Ell. Leaflets lanceolate, serrulate, pubescent; petioles villous; fruit oblong-ovate- 

 iSynon. J. cathartica. Mx. Arb- Fj</so~White Walnut. Butter-nut. 



