the Roucou or Arnottis-Tree: A genus of the Monogynia order, belonging to the polyandria class of plants; and in the natural method ranking under the 37th order, Columiferae. The corolla is ten-petaled; the calyx quinquedentated; the capsule hipped and bivalved. Of this genus there is but one species known, viz., the orellana, a native of the warm parts of America. This rises with an upright stem to the height of eight or ten feet, sending out many branches at the top forming a regular head, garnished with heart-shaped leaves ending in a point, and having long footstalks. The flowers are produced in loose panicles at the end of the branches; these are of a pale peach colour, having large petals, and a great number of brilliantly flammea of the same colour in the centre. After the flower is past, the germen becomes a heart-shaped, or rather a mitre-shaped, vessel, covered on the outside with brittle opening with two valves, and filled with angular seeds. These seeds are covered with a red waxen pulp or pellicle, from which the colour called Anotra is prepared, according to the process described under that article. These plants, in the countries where they grow, thrive best in a cool rich soil, and shoot most luxuriantly near springs and rivulets. With us, they may be propagated by seeds procured from America. They are to be sown in pots in the spring, and plunged in a bed of tanner's bark: the plants must afterwards be removed into separate pots, and always kept in the stove.