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 capsules 1-1½ inches in diameter, normally of 4
segments, but owing to the growth of one or more at the expense of the
rest, the capsule is often irregularly developed. They are light brown
in colour and at first sight resemble those of _Khaya_ but contain
brilliant red oval seeds set in a bright yellow aril, embedded in the
thick walls of the capsule, in a vertical position.
[Illustration]
=ENTADA SUDANICA= Schweinf.—_Tawatsa_. LEGUMINOSAE.
A very common species occurring everywhere in savannah forests of the
more open type; usually about 20 feet high, sometimes more, with an
average girth of 3 feet. It forks and branches low and has, as a rule,
no length of bole and a widespreading, open crown. In full leaf it is
graceful in appearance and not unlike _Parkia_. It is of no use as a
forest species except from its frequency.
=The Bark= is light grey with very long fissures and ridges set widely
apart. It peels in long strips and provides a fibre, as does that of
the roots which is in local use for rope. The slash is crimson and
white in thin streaks.
=The Wood= is a light red colour. In transverse section the rings are
well marked dark lines, close together, the pores are large, open, few,
widely scattered, single or in small nests or rows of two or three, the
rays straight, continuous, not too evenly spaced, some just visible to
the naked eye. In vertical section the pores are long, open and sparse,
and the grain fairly well marked in darker red lines. The wood is not
hard, easily worked, planes to a nice smooth finish and is sound and
compact. The weight is 50 lbs. a cubic foot.
=The Leaves=, which resemble those of _Parkia filicoidea_, though they
are a much lighter green, are bipinnate and about 18 inches long. The
pinnae, 5 or 6 pairs, are set wide apart on the mid-rib, and there
are some 15-20 pairs of inch-long leaflets, light green above and
grey-green beneath, with a waxy texture. They grow densely near the
twig tips and the mid-rib remains on the twig after the leaflets have
fallen, persistent through the dry season.
=The Flowers= are in 4-5 inch spikes, whitish in colour. Each flower
consists of 5 small green sepals and 10 white stamens with pistil. They
appear amongst the new leaves in March, and are sweet-scented.
Public-domain text, read in full here on John Shaqi.
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