134 LANDSCAPE GARDENING. 
of nearly 100 feet. It is found in the greatest perfection in 
the alluvial soils of the fertile valleys of the Connecticut, 
the Mississippi, and Ohio Rivers. 
The Red or Slippery elm. ( U. fulva.) A tree of lower 
size than the White elm, attaining generally only 40 or 50 
feet. According to Michaux, it may be distinguished from 
the latter even in winter, by its buds, which are larger and 
rounder, and which are covered a fortnight before their de- 
velopment, with a russet down. The leaves are larger, 
rougher, and thicker than those of the White elm ; the seed- 
vessels larger, destitute of fringe ; the stamens short, and of 
a pale rose colour. This tree bears a strong likeness to the 
Dutch elm, and the bark abounds in mucilage, whence the 
name of Slippery elm. The branches are less drooping than 
those of the White elm. 
The Wahoo elm, ( U. alata ,) is not fouud north of Vir- 
ginia. It may at once be known in every stage of its growth, 
by the fungous cork-like substance which lines the branches 
on both sides. It is a very singular and curious tree, of 
moderate stature, and grows rapidly and well when cultivated 
in the northern states. 
The common European elm. ( U. campestris.) This is 
the most commonly cultivated forest tree in Europe, next to 
the oak. It is a more upright growing tree than the White 
elm, though resembling it in the easy disposition and delicacy 
of its branches. The flowers, of a purple colour, are pro- 
duced in round bunches, close to the stem. The leaves are 
rough, doubly serrated, and much more finely cut than those 
of our elms. It is a fine tree, 60 or 70 feet high, growing 
with rapidity, and is easily cultivated. The timber is more 
valuable than the American sort, though the tree is inferior 
to the White elm in beauty. There are some dozen or 
