Systematic Street Tree Planting. -7 



lindens. . None of these, however, are serious troubles. The 

 Crimean Linden has attractive yellowish twigs and presents 

 a picturesque and striking appearance. 



7. PIN OAK (Quercus palustris). 



An excellent hardy tree with tough sturdy branches is the 

 Pin Oak. It prefers a moist soil in which it will thrive and 

 produce a luxuriant growth. But it will make a satisfactory 

 tree in drier soils such as are found in the residential sec- 

 tions of many cities and the streets of villages and towns. 

 This tree is highly valuable as an ornamental shade tree. It 

 is not troubled to any extent by pests. The Pin Oak is an 

 attractive tree. When young it is very regular in its branch- 

 ing habit, producing a straight, distinct, main stem from 

 which the branches grow almost at right angles. Some very 

 old Pin Oaks may be seen in some of the European cities. 

 On several streets in Washington, D. C., the Pin Oak has 

 been grown very successfully and the success in general that 

 has followed the planting of this sort of street tree in other 

 cities is a strong inducement for planting it more generally. 



8. RED OAK (Quercus rubra). 



Like all of the other native oaks, the Red Oak is abso- 

 lutely hardy. Probably this oak is the best for general street 

 planting. It grows fast, makes a beautiful tree and is not 

 exacting as to the kind of soil in which it shall be planted. 

 In the autumn the foliage of the Red Oak rivals in bril- 

 liancy that of the Sugar Maple. But the Red Oak does not 

 wait until the autumn before it makes an attractive showing. 

 All through the summer the rich, dark green, leathery foliage 

 gives a fresh appearance and a healthy glow to this tree 

 which few others possess. The shade furnished by the oak 

 is always mellow and pleasing. The Red Oak is compara- 

 tively free from insect enemies. The general habits of growth 

 of the oak are such as to make it desirable for street plant- 

 ing. It increases in girth of trunk as rapidly as the Sugar 

 Maple and it will spread over more space in equal time. It 

 makes a clean, strong, durable tree and one that requires very 

 little attention while affording shade and beauty for many 

 vears. 



