ORDER OF ARRANGE 31 ENT. 
301 
The lilac family, on the other hand, being in general of a shrubby 
growth, that is, having several stems springing from the base of the 
trunk to form a top, will all be described under the general head of 
Shrubs, although some of them assume a tree-like character. 
Many of the smaller species of evergreens, like the arbor-vitaes, 
tree-box, junipers, and yews, are of shrubby, rather than tree-like 
appearance ; but as they finally tend to make a single stem, they 
have by long custom been classed with trees, though some of their 
smaller varieties are quite diminutive by the side of common garden 
shrubs. 
It will be seen by these examples that among descriptions of 
trees are included many of the smallest materials that enter into the 
composition of shrubberies j and among the descriptions of shrubs 
will be many quite tree-like species and varieties of abnormal vigor, 
which, if classed by their own characteristics rather than of the 
family to which they belong, would be described among trees. A 
copious table of contents giving both the popular and the botanical 
names for all trees and shrubs described, facilitates better than any 
new classification, a reference to the subject sought. We shall, 
however, in an appendix, give some tabular classifications on the 
basis of sizes and forms, for the convenience of those desiring to 
make selections, who can by this means compare them in abbre- 
viation. 
We shall begin our descriptions’ of deciduous trees with the oak, 
and follow with other trees, somewhat in the order of their size and 
importance in the common estimation, but do not desire the reader 
to infer that those which happen to be described towards the last, 
are therefore of less value for decorative purposes than those which 
precede them. 
The descriptions will be made in four classes, as follows : 
Deciduous Trees. 
Deciduous Shrubs. 
Evergreen Trees and Shrubs. 
Vines and Creepers. 
Each of these classes will be the subject of a chapter. 
