and the term _definite_ is applied. Branches, like the Rose, that go on
growing all summer grow indefinitely.

The bud-scale scar is quite different from the other trees which we have
examined. It is not composed of definite rings, but of leaf-scars with
long ridges running from each side of them, showing the scales to be
modified stipules. The leaf-scars have become somewhat separated by the
growth of the internodes. In the Beech, there are eight, or more, pairs of
scales with no leaves, so that the internodes do not develop, and a ring
is left on the branch.

The flower-cluster leaves a concave, semicircular scar, in the leaf-axil.

[Illustration: FIG. 17.--Balm-of-Gilead. 1. Branch in winter state: _a_,
leaf-scar; _b_, bud-scar. 2. Branch, with leaf-buds expanded. 3. Branch,
with catkin appearing from the bud.]

The terminal buds are the strongest and not very many axillary buds
develop, so that the tree has not fine spray.

The leaf-arrangement is alternate, on the 2/5 plan. Phyllotaxy is not yet
to be taken up, but the pupils should be shown the different angles of the
branching of the twigs, and told to compare them with Beech and Elm.

QUESTIONS ON THE BALM OF GILEAD.

In which buds are the flower-clusters?

Are there flowers and leaves in the same buds?