The useful trees of northern NigeriaLely, Hugh Vandervaes
Science
The useful trees of northern Nigeria
Lely, Hugh Vandervaes
Plants, Useful -- Nigeria, Northern; Trees -- Nigeria, Northern
=The Fruits= are pods about 3-4 inches long and 2 inches in diameter.
There are 4 or 5 together radiating from a twig end and they are the
readiest means of identification. They are rounded in the middle and
pointed at the end with a groove on the under side along which the pod
splits. They are covered with greenish hairs like plush, in a manner
similar to the fruits of the Baobab tree. About December the fruit
ripens and splits, the seeds falling and the pod remaining on the tree.
The seeds, about a dozen, are purplish with a horny, yellow aril at the
base and they are attached to both edges of the pod, sitting on small
bosses which are covered with short stiff brownish hairs that penetrate
the skin of the fingers. There is a large roomy space in the pod, the
seeds being small in proportion.
=Uses.=—The watery sap which exudes from a slash in the spring is drunk
in extremity of thirst.
[Illustration]
=STEREOSPERMUM KUNTHIANUM= Cham.—_Sansami, Jiri_. BIGNONIACEAE.
This is, as commonly met with, quite a small tree, some 20 feet high,
with a girth of 2 feet. Larger specimens up to 60 feet in height with
a girth of 4 feet are occasionally seen, these dimensions showing the
slender proportions of the species. It occurs in clumps, specially
fine examples of which are to be seen in Sokoto where they are spread
by root suckers. The stem is nearly always waved or spiral, this
peculiarity persisting in the larger trees. The stem forks early
and the twisted branches form a high crown and the clumps a light
canopy under which little grows. Twin stems are common and root
suckers abound. The power to grow these suckers is very persistent,
as evidenced by cases of them appearing on land which has been farmed
for many years and on which there has been no sign of the tree being
allowed to grow. Great difficulty has been experienced in growing the
tree by artificial means though the seed has been germinated, but the
seedlings would not stand transplanting.
=The Bark= is pale grey or greenish with very large scales which expose
contrasting light patches after the manner of the Plane tree. The slash
is white with green edges.
=The Wood= is white or cream-coloured, with tinges of yellow and pink.
In transverse section the rings are indistinct darker lines, the pores
are very small, in festoons with a large percentage of soft tissue
plainly visible as flecks and long concentric lines. The rays are not
very closely or evenly spaced, seen as light-reflecting bands in radial
section. The grain is fairly straight, following the waved stem of the
tree, and coarse with the numerous open pores. The rings show as bands
in radial section. The wood is fairly hard, easily sawn, not so readily
planed, picking up a little, the finished surface being rather coarse.
The weight is 60 lbs. a cubic foot.
Public-domain text, read in full here on John Shaqi.
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