TEXTBOOK OF LANDSCAPE GARDENING 
other means of positive identification. Good books for this pur- 
pose are Gray’s “‘Manual of Botany”’; Sargent’s “Manual of the 
Trees of North Amer- 
ica’’; McFarland’s 
“ Getting Acquainted 
with the Trees. ”’ 
The most impor- 
tant kinds of trees for 
landscape work are 
enumerated in the fol- 
lowing lists: 
Deciduous Trees 
Ash: Three or four 
species of native ash 
are excellent for mass 
planting on __ suitable 
soils, usually bottom 
lands or wet situations. 
They are not so good as 
specimens or lawn trees. 
Beech: The native 
beech is a splendid tree 
where it can be grown. 
The purple-leaved beech 
and the fern-leaved beech are interesting curiosities and very 
satisfactory if one likes that sort of thing. 
Birch: Birches have long been favorite specimens for front 
lawns and cemeteries. This fact indicates how uncritical is the 
taste which selects them. From the standpoint of landscape gar- 
dening all the birches are excellent for woodland planting, especially 
for the borders of park woodlands. 
Catalpa: These trees are not very valuable except that they 
Fic. 114. Tae Amsrican Etm 
236 
