^O'Z FLOKA OF TEXAS. 



plano-convex. — Trees or shrubs, with simple entire or 

 lobed leaves ; stipules caducous. 



§ Fruit biennial. 



* Leaves entire, short-peiioled ; those on vigorous shoots often lobed or toothed, 



Q. Phellos, L. (Willow Oak.) Leaves (2-3' long) 

 lanceolate or linear-lanceolate, bristle-awned, scurfy, like 

 the branchlets, when young, becoming smooth on both 

 sides ; fruit small, sessile ; cup flattish, inclosing the base 

 of the hemispherical nut. Margins of swamps and streams. 

 —A slender tree, 40°-50° high. 



Var., LAURIFOLIA. (Q. laurifolia, Michx.) Leaves larger 

 (3-4' long), oblong-lanceolate ; cup deeper and more point- 

 ed at the base. Light uplands. — A ti-ee, commonly larger 

 than the preceding. 



Var., AREKARIA. (Q. myrtifolia, Willd. ?) Shrubby 

 (4°-8° high) ; leaves small (^'-li long), rigid, oblong or 

 obovate, obtuse or barely pointed, with the margins revo- 

 lute. Dry sand-ridges, along the coast. 



Q. IMBRICARIA, Michx. {ShiugU Oak.) Leaves lanceolate- 

 oblong, acute or obtuse at each end, mucronate, pale and 

 downy beneath, deciduous ; /rwiV middle-sized; 67^p nar- 

 rowed at the base, inclosing one-half or one-third of the 

 nearly hemispherical nut, the broad and whitish scales 

 closely appressed. Mountains. — A tree, 40°-50° high; 

 leaves 3 '-5' long. 



Q. ciNEREA, Michx. {High-ground Willoio Oak.) Leaves 

 perennial, oblong-lanceolate, obtuse or acute, mucronate, 

 white-tomentose beneath ; fruit small, sessile ; cup shal- 

 low, narrowed at the base, pale, inclosing one- third of the 

 hemispherical nut. Dry sandy pine-barrens. — A small ^ree, 

 fruiting abundantly; leaves 2'-3' long, scurfy, like the 

 branchlets, when young. 



Var., PUMiLA, Michx. (Q. pumila, Walt.) Shrubby 

 (l°-3° high) ; branches slendiQv ; /eat^es lanceolate, wavy, at 



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