A SELECT LIST OF TREES. Ill 



Oak. — Oaks are slow to grow, but they are worth 

 waiting for. Almost every species is desirable for plant- 

 ing in parks and private grounds. Special mention may 

 be given to the American White oak, Quercus alba. 

 Swamp White oak, Q. hicolor, and the Scarlet oak, Q, 

 coccinea. A dozen other extremely valuable species may 

 be selected from almost any catalog. 



Paulowxia. — This fine tree is seldom seen in per- 

 fection. Perhaps it is difficult to grow, though the 

 experience of gardeners generally does not enforce this 

 point. It does fairly well as far north as New York 

 city, where some excellent specmiens may be seen in 

 Central Park. At Washington it is perhaps at its best. 



PixE. — The genus Pinus contains the best of the 

 evergreen trees, though for general park planting spruces 

 are more easily managed. The best park pines are the 

 Austrian, the Scotch, the White, Pinus Strohiis^ and the 

 Dwarf Mugho. The latter makes a small, round-topped 

 tree six to ten feet high, which is very attractive in 

 certain situations. 



Plums. — Pissard's plum is the one most commonly 

 chosen for ornamental planting. This makes a clean, 

 pretty, small tree, with bright, red foliage. It cannot 

 be used in quantity. Several of the native plums, par- 

 ticularly Primus Americana, are suitable for more fre- 

 quent use in general composition. 



Poplar. — Several of the poplars are useful, partic- 

 ularly on account of their easy and rapid growth. They 

 are, however, short-lived, and sometimes objectionable 

 on account of their cottony seeds, which they i?ow broad- 

 cast. The Lombardy poplar has its own peculiar and 

 obvious role in gardening practice. 



Spruce. — Next to the pines, the spruces are our 

 finest evergreens, and are, pernaps, even more useful 

 than the former in general ornamental planting. The 

 best are the Norway, White, Black and Colorado. 



