MISSOURI BOTANICAL GARDEN BULLETIN 181 
nuts are large almond-like seeds, which are eaten raw or 
roasted and are said to compare with the filbert in taste. The 
nuts also yield an oil. Several species of this genus are used 
in tanning. Astringent galls which form on the young twigs 
are employed in India for making ink, as well as for dyeing. 
ORNAMENTALS 
Abrus precatorius. Leguminosae. Coral-bead plant.—A 
slender, twining, wing-leaved shrub, native of the East 
Indies. The seeds are scarlet with a black spot; and are used 
for rosaries, necklaces, goldsmiths’ weights, etc. 
Acacia spadicigera. Leguminosae. Bull horn—A small 
tree of Mexico, with 1-3 erect stems, and a few lateral 
branches bearing numerous large, inflated spines, remark- 
able for their close resemblance to the horns of an ox or 
buffalo. The pods are eaten by pigs and other animals. The 
spines are utilized by certain stinging ants of the genus 
seudomyrma as nesting places for raising their young. The 
horns are hollowed out by the insects, which perforate one 
of the spines near the tip, usually on the under side so that 
no water can enter. The bipinnate leaves have nectar glands 
on the rachis and petiole, and are still further provided with 
paula processes on the tips of the leaflets, minute wax-like 
ies rich in oil and protoplasm, which are used as food by 
the ants. Belt was the first to suggest that in return for the 
quarters and subsistence, the little ants protect their host as. 
body-guard soldiers. 
Antigonon leptopus. Zee. Mountain rose.—A 
tropical tendril climber, probably the only species cultivated 
in this country. The stem is slender, tall and glabrous, and 
the rose-pink flowers are in racemes. The plant requires an 
abundance of light but is one of the handsomest of summer- 
blooming greenhouse climbers. In the south it blooms freely 
in the open. 
Artabotrys odorotissimus. Anonaceae. Climbing ylang- 
ylang—aA woody climber of China. It is widely cultivated 
in the tropics and conservatories for its flowers and fruits. 
The flowers are yellow, two inches long, fragrant, and showy. 
Bignonia speciosa. Bignoniaceae. Trumpet flower.—An 
ornamental climber native of South America. 
Bignonia violacea, B. buccinatoria, and B. Tweediana. 
Brezia madagascariensis. jad meee RE tree native 
of Madagascar, with alternate leaves furnished with minute 
stipules. The flowers are green, produced in axillary umbels. 
The plant is much used in conservatories. 
