in medicine, and a
decoction of the roots is used for ulcers.

76. CAESALPINIA BONDUC.--A tropical plant, bearing the seeds known as
nicker nuts, or bonduc nuts. These are often strung together for
necklaces. The kernels have a very bitter taste, and the oil
obtained from them is used medicinally.

77. CAESALPINIA PULCHERRIMA.--This beautiful flowering leguminous plant
is a native of the East Indies, but is cultivated in all the
tropics. In Jamaica it is called the "Barbados flower." The wood
is sought after for charcoal, and a decoction of the leaves and
flowers is used in fevers.

78. CAESALPINIA SAPPAN.--The brownish-red wood of this Indian tree
furnishes the Sappan wood of commerce, from which dyers obtain a
red color, principally used for dyeing cotton goods. Its root also
affords an orange-yellow dye.

79. CALAMUS ROTANG.--This is one of the palms that furnish the canes or
rattans used for chair bottoms, sides of pony-carriages, and
similar purposes. It is a climbing palm and grows to an immense
length; specimens 300 feet long have been exhibited, climbing over
and amongst the branches of trees, supporting themselves by means
of the hooked spines attached to the leaf stalks. _C. rudentum_
and _C. viminalis_ furnish flexible canes. In their native
countries they are used for a variety of manufacturing purposes,
also for ropes and cables used by junks and other coasting
vessels. In the Himalayas they are used in the formation of
suspension bridges across rivers and deep ravines. _C. scipionum_
furnishes the well-known Malacca canes used for walking sticks.
They are naturally of a rich brown color. The clouded and mottled
appearance which some of these present is said to be imparted to
them by smoking and steaming.

80. CALLISTEMON SALIGNUS.--A medium-sized tree from Australia; one of
the many so-called tea trees of that country. The wood, which is
very hard, is known as stone wood and has been used for wood
engraving. Layers of the bark readily peel off; hence it also
receives the name of paper-bark plant.

81. CALLITRIS QUADRIVALVIS.--This coniferous plant is a native of
Barbary. It yields a hard, durable, and fragrant timber, and is
much employed in the erection of mosques, etc., by the Africans of
the North. The