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
A large tree occurring near streams in Bauchi, Sokoto and Zaria
provinces. It is also found in the forests where the conditions are
moist enough, and is not at all uncommon amongst the rocks on the
Bauchi plateau. It rarely has any length of bole, the crown almost
reaching the ground and the stem being bent or leaning. The crown is
dense and the branches droop at the end. A height of 30-40 feet with a
girth of 4-5 feet is usual. The foliage much resembles that of _Khaya
senegalensis_, from a distance, but has a brilliant sheen.
=The Bark= is brown or grey-brown, roughish, with scales an inch or two
in diameter fitting close together.
=The Leaves= are pinnate, 10-18 inches long with 5-7 pairs of opposite
or nearly opposite leaflets and a terminal leaf. The smallest at the
base are 1½ inches long and ¾ inch wide; the largest in the middle
are 3½ inches long and 1½ inches wide. The edges are parallel and
there is a sharp taper to a cleft tip. The basal lobes are uneven and
the leaflets vary much in shape. The terminal leaflet is broader in
proportion to its length than the lateral leaflets and the margins
are not parallel. There are small stipules at the base of each stalk.
The surface on both sides is shining and the new leaves are a most
brilliant green. The mid-rib is below the upper surface but raised
beneath.
=The Flowers= which bloom from March to May are in loose panicles up to
2 feet in length and in such numbers as to show up from a considerable
distance. The blossom is very ornamental. The flower is papilionaceous
with a large pink standard and white keel. A species of small black ant
swarms over the flowers at times.
=The Fruits= resemble large walnuts and hang in bunches on long stalks
like mangoes. They are ovoid, 2-3 inches long and 2 inches across, with
a thick, fibrous, green-brown case containing two white kernels one
above the other. They ripen about September. There is the line of a
suture down one side, and the surface is uneven.
[Illustration]
=ANOGEISSUS LEIOCARPUS= Guill. & Perr.—_Marike_. COMBRETACEAE.
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