​ALLAMANDA, named after J. N. S. Allamand (1713–1787), of Leiden, a genus of shrubby, evergreen climbers, belonging to the natural order Apocynaceae, and a native of tropical America. Several species are grown in hot-houses for the beauty of their foliage and flowers; the latter, borne in many-flowered panicles, have a funnel-shaped corolla with a narrow tube, and often yellow in colour. The plants are often of comparatively easy culture, and very effective when trained to wires beneath the roof of the house.