OAK FAMILY. 



313 



Shingle Queecits. Laurel or Shingle Oak. 



stem 40-60 feet high, and 1-2 feet in diameter, with a smoothish hark; hranches 

 numerous and irregular. Leaves 3-5 inches lon^. entire, somewhat crowded on short 

 petioles. Acorn rather small, roundish above, with a broad flattish base so as to be 

 nearly hemispherical, seated in a shallow subsessile ci/p. 



Banks of streams. New Jersey, southward, and in the Western States. 



Obs. This species — being chiefly confined to the country vrest of the 

 Alleghany Mountains — is but little known in the east ; and although 

 deriving its specific name from the roofing material which it affords, its 

 timber is said to be of an inferior quality — even for that purpose. 

 *** Black and Red Oak Group. Leaves deciduous, bristle-pointed, 

 repand or acutely sinuate-Iobed. 

 f Mature leaves downy underneath. 



9. Or. ni'gra, L. Leaves somewhat coriaceous, cuneate, dilated at apex, 

 retuse or obscurely 3-lobed. smooth above, covered with a russet pul- 

 verulent pubescence beneath, when young the nerves setaceously mucro- 

 nate ; cupule subtm-binate ; acorn ovoid. 

 Black Quercus. Black Jack. Barren Oak. 



stem 15-30 or 40 feet high, and 6-12 or 15 inches in diameter, with a thickish 

 furrowed dark-colored bark ; branches numerous. Leaves b-S inches long, much dila- 

 ted at apex (-4-6 inches wide), narrowed towards the base, on short petioles. Acorn 

 ovoid, seated in a rather deep or bowl-shaped subsessile cup. 



Sterile soils : New Jersey to Illinois and southward. 



Obs. This small tree — abundant in Maryland, and well known by the 

 name of " Black Jack." — is chiefly valuable for fuel. The nearly related 



Fig. 206. The Willow Oak (Quercus Fhellos.) 

 Fig. 207. The Laurel or Shingle Oak (Quercus Imbricaria). 20S. An acorn. 



