COLOKS OF TREES. J 51 



stiffest clay, or tlio most friable loam ; others perti- 

 naciously cling to a particular soil, and refuse to flour- 

 ish in any other. Some refuse to grow'in any but 

 grounds light, dry, and open in texture ; others love 

 the heav}", moist, and clammy earths contiguous to 

 water. All these qualifications must be regarded, to 

 insure success in diversified plantations. 



In " pleasure-grounds," exotic trees, of character 

 congenial with the soil and climate, may be sparingly 

 introduced ; as, the horse-chestnut, the weeping wil- 

 low, and a few others, as indicating choicer cultivation 

 than what is given to the " park.'- In the latter may 

 be occasionally thrown the Lombardy-poplar — a tree 

 often treated with idle abuse because it has some 

 faults ; but no one can say, and say it trutlifully, that- 

 the spire-like top of a Lombardy-poplar, peering up 

 through the formal outline of a group of round-headed 

 trees, does not give both a graceful and picturesque 

 expression to the landscape, which would be wanting 

 without it, Tlie larch may partially supply its pres- 

 ence, but not with entire efitect. Excessive use of the 

 poplar, in some instances, has brought it into, per- 

 haps, in that feature of it, v,-ell-deserved condemnation ; 

 but sparingly and considerately apj^lied, it may be- 

 come one of the most effective features in park-expres- 

 sion. — Ed. 



Sect. II. — The Colors of Trees. 



The tints of color exhibited in trees are, perhaps, as 

 numerous as their forms. To advert, at present, only 

 to the foliage, — the normal color of the leaves is green, 



