One of the most admirable of these different forms is that of the vase.
The base is represented by the roots of the tree as they project above
the ground, making a sort of pedestal for the trunk. The neck of the
vase is the trunk before it is subdivided. The middle of the vase
consists of the lower part of the branches as they swell outwards with a
graceful curve, then gradually diverge, until they bend over at their
extremities and form the lip of the vase by a circle of terminal spray.
Perfect specimens of this beautiful form are rare, but in a row or a
grove of elms there are always a few individuals that approximate to
this type.