Description of Native Trees 



l8. Live Oak. (Quercus virens.) 



Leaf: i'-3', simple, alternate, entire or spiny-toothed, oblong 

 to elliptical, hairy beneath, evergreen, leathery ; acorn oblong. 

 Virginia. (PI. I.) 



19. Upland Willow-oak. (Quercus cinerea.) 

 Leaf : much as in 18, but more lance-shaped, and more downy 

 beneath ; acorn globular. East Virginia. 



20. Linden. Basswood. Lime-tree. (Tilia Americana.) 

 Leaf: 5'-6', simple, alternate, sharply serrate, roundish, green 

 and smooth on both sides, base oblique and often slightly cordate. 

 Flower : whitish, fragrant, small, clustered and attached to a 

 long, narrow, leaf-like appendage ; June. (PI. IV.) 



21. Downy-leaved Basswood. (Tilia pubescens.) 

 Leaf : 2'-3', like 20, but smaller, and soft hairy beneath. 

 Maryland, south and west. 



22. White Basswood. (Tilia heterophylla.) 

 Leaf : 6-7', like 20, but larger, and whitish beneath. Moun- 

 tains of Pennsylvania, south and west. 



23. European Linden. (Tilia Europsea.) 

 Leaf : as in 20, but smaller, and generally cordate. Flower : 

 lacks the petal-like scales among the stamens found in American 

 species. Cultivated. 



24. Common Aspen. (Populus tremuloides.) 

 Leap : i)^'-2', simple, alternate, finely serrate or crenate, 

 roundish or ovate, apex pointed, base cordate, stem thin. Bark 

 yellowish or greenish-white. (PI. V.) 



25. Large-toothed Aspen. (Populus grandidenta.) 



Leaf : 3'-4', simple, alternate, very coarsely serrate with blunt 



teeth, broad-ovate, young leaves very ■white-woolly, soon becoming 



smooth ; leaf and tree larger than 24, but bark similar. (PI. V.) 



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