166 H)ecttmous tiroes. 



the pepperidge, the sassafras laurel, and the sweet gum. 

 In their autumn garbs they excel the best spring effects of 

 flowering trees, painting hill and dale in exquisite tints of 

 gold and scarlet. Species that possess the special merit of 

 changing into fine autumn colors should be selected in 

 preference to others, as they introduce a new element of 

 ornament and beauty into the garden. 



THE LINDEN FAMILY. 



Linden, Tilia. — The species of this genus are fine trees 

 with very regular, rounded crowns and cordate leaves, 

 bright green or silvery beneath ; foliage very dense, giving 

 a heavy shade. Both the European lindens, the two 

 varieties of Tilia Ewropea, and the American linden (T. 

 Americana), are fine trees for avenues. While flowering 

 in summer the sweet odor of the innumerable flowers add 

 to their general attractiveness. The silver lindens {Tilia 

 argentea of Europe, and T lieterophylla, au American spe- 

 cies) are very ornamental in a young state and suitable 

 for the embellishment of lawns as specimen trees. The 

 lindens do best in a moderately dry and fertile soil ; they 

 are rapid-growing trees, useful for shade and shelter. 



THE QUASSIA FAMILY. 



Tree of Heaven, Ailanthus glandulosa. — An elegant 

 aud quick-growing, medium-sized tree with long pinnate 

 leaves, similar in appearance to some species of ash. It 

 forms a dense, globular crown, producing nice effects of 

 shade and light. The species will thrive in almost any 



