Trees or shrubs; branches occasionally scandent. Leaves coriaceous or sub- membranous, entire, the veins oblique-arcuate and anastomosing. Inflorescences terminal, axillary, extra-axillary or supra-axillary, paniculate, the branches com- monly secund or scorpioid. Flowers perfect or polygamous; calyx fleshy, per- sistent; petals free, fleshy, the apices inflexed, the midrib prominently developed; stamens free, the filaments fleshy, glabrous, more or less flattened, the anthers basifixed, introrse, longitudinally dehiscent; disc wanting; ovary subgibbose, commonly 1-loculed, the locule with a prominent parietal ridge, the ovules 2, pendant from near the apex, the style glabrous, rudiments frequently present, the stigma capitate. Drupes scarcely fleshy, the putamen woody, the locule incom- pletely septate; seed solitary, longitudinally folded around the vertical woody dissepiment, hippocrepiform in section, the embryo small, the endosperm copious.
Citronella is a genus of 20 species in 2 sections: one of the Western Hemi- sphere, from Costa Rica and Panama throughout South America, but not the West Indies; and the other from the Old World, from the Philippines, East Indies, New Caledonia, Polynesia, New Guinea, and Australia, but not continental Asia.