What happens when a branch is stopped in its growth by flowering?

What effect does this have on the appearance of the tree?

In some parts of the country the Horsechestnut is not so commonly planted
as in New England. In the southern states the Magnolia may be used in its
stead, but it is not nearly so simple an example of the main points to be
observed.[1]

[Footnote 1: Reader in Botany. VII. Trees in Winter.]


MAGNOLIA UMBRELLA.

The bud may be examined by removing the scales with a knife, as in
Horsechestnut, and also by cutting sections. The outer scales enfold the
whole bud, and each succeeding pair cover all within. They are joined,
and it is frequently difficult to tell where the suture is, though it can
generally be traced at the apex of the bud. On the back is a thick
stalk, which is the base of the leaf-stalk. Remove the scales by cutting
carefully through a single pair, opposite the leaf-stalk, and peeling
them off. The scales are modified stipules, instead of leaf-stalks, as in
Horsechestnut. The outer pair are brown and thick, the inner green, and
becoming more delicate and crumpled as we proceed toward the centre of the
bud. The leaves begin with the second or third pair of scales. The first
one or two are imperfect, being small, brown, and dry. The leaves grow
larger towards the centre of the bud. They are covered with short,
silky hairs, and are folded lengthwise, with the inner surface within
(_conduplicate_). In the specimens I have examined I do not see much