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 Wood= is a very light brown. In transverse section the rings
show broad bands of a darker colour, a purple tinge which is clearly
seen in vertical, especially radial sections. The pores are minute,
quite invisible to the naked eye, and with difficulty seen with the
lens, in rows between the extremely fine rays which are waved and very
close together. The grain is very close and fine; seasons well and is
slightly liable to borer beetle attacks, works well with all tools, the
plane producing a nice clean finish of a velvety nature. It is one of
the best all-round timbers for many purposes and its small sizes are a
great misfortune. The weight is 40 lbs. a cubic foot.
=The Leaves= vary somewhat in shape from a narrow oval to a broad,
rather square oval, both shapes with a pointed tip. They are 3-4 inches
long and 2-2½ inches broad with ½-¾ inch stalk. They are in opposite
pairs as is so typically seen at the base of the flower or seed head.
They are paler beneath than below, very soft and thin in consistency
and the venation appears almost white by contrast.
=The Flowers= are in yellowish balls an inch in diameter, sweet-scented
and appearing at the beginning of the rains, though a few blooms may
be found at odd seasons. Each flower is about ½ inch long with 5 long
sepals narrow at the base, broad at the tip (obconical); a tubular
corolla with 5 lobes between each of which protrudes the anther of a
stamen, grey in colour; and a long pistil terminating in a reddish
stigma, shaped like a bee-hive. The flowers are at first white and then
turn yellow.
=The Fruits= are in spherical heads ¾ inch in diameter and dark brown
in colour. Each fruit is what is called di-coccous, _i.e._, the fruit
is formed of two separating carpels, containing seeds. The fruiting
heads are most conspicuous and enable the tree to be identified from
some distance.
=Uses.=—The timber has been used lately by the Industrial Schools with
great success, and in Sokoto it has been found one of the best for
all purposes where large sizes are not necessary. The native makes
bowls and spoons from it and it is a good source of poles for building
houses. It is supposed to rot rapidly if exposed to wet.
[Illustration]
=MONOTES KERSTINGII= Gilg.—_Wasani, Gasa kura, Farin Rura_.
DIPTEROCARPACEAE.
A small tree of the better types of savannah not extending much north
of 11°, and very locally distributed. In certain localities, _e.g._,
S.E. Sokoto and W. Bauchi, it is very abundant and over hundreds of
square miles will be found pure in patches and elsewhere composing
40-50 per cent. of the growth. It is slender, erect, up to 30 feet
in height, with a stem of 1½-2 feet in girth, with the stem bare of
branches up to 10 feet and the crown high, open and narrow. Trees in
the open will grow large, round, compact crowns. The distinguishing
features are the very light under surface of the leaf and the enlarged
sepals which surround the fruit. The species resembles _Parinarium_.
Public-domain text, read in full here on John Shaqi.
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