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 Flowers= are in round heads, 2-3 inches across, at the tips of
the leafless twigs and appear from December onwards. Each flower is
cream-white in colour, has 8 sepals in two rows, 8 petals, 8 stamens
and a central, petal-like crown round the ovary, consisting of abortive
stamens (staminodes). The flowers are sweet, with a rather nauseating
perfume. As they die off, the young leaves shoot from the middle of the
head. They are visited by bees.
=The Fruits=, which begin to form from January onwards are like green
plums when ripe, and contain one or two shiny, chestnut-brown kernels,
with a large scar, or hilum, having the appearance of a split seed
coat. They are about 2 inches long and 1 inch wide, the thin seed coat
enclosing a firm, white flesh, from which the oil is extracted.
=Uses.=—The oil is extracted and the butter made by the natives by
a preliminary boiling in water, followed by repeated pounding and
stirring in cold water, the oil which rises to the surface being
skimmed off and placed to harden in calabashes. It is eaten as such,
burnt as an illuminant and used as a base for certain medicines.
[Illustration]
=CASSIA AREREH= Del.—_Malga, Gamma fada_. LEGUMINOSAE.
A small, erect tree from 15-20 feet in height, about a foot in girth,
with one or more stems and a high, drooping crown of delicate pinnate
leaves. It resembles _Cassia Sieberiana_ only in the shape of the
flowers, leaves and pods, and the outstanding differences are the erect
form, the perfume and the longitudinally splitting pods. It grows in
good soils and not in the barren places where _C. Sieberiana_ abounds.
=The Bark= is a dull grey, with wavy but not prominent ridges of crisp
bark, often rather shaggy when the scales fall in long pieces. The
slash is pale brown.
=The Leaves= are pinnate, about 10-12 inches long with 6-7 pairs
of leaflets some 2 inches long and narrowing in proportion to the
length towards the top of the leaf. The main rib is very slender and
is produced beyond the top pair of leaflets in the form of a slender
curve, which frequently replaces one of the final pair of leaflets. The
leaflets are smooth, clearly veined and purplish when young.
=The Flowers= are in racemes some 6-10 inches long, crowded, especially
at the tip, with the flowers whose stalks grow to 3 inches in length.
The three bracts, one long and a pair shorter are very conspicuous,
especially at the crowded tip of the flower stalk where the buds are
purplish. The flowers are typical of the genus, with 5 curled sepals,
5 irregular oval petals, 3 long, 4 medium and 3 short stamens, and
a long, curved pistil swollen in the middle. The flowers are highly
perfumed and appear in February in large masses amongst the new leaves.
Public-domain text, read in full here on John Shaqi.
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