or climbing, evergreen or deciduous shrubs or small trees. Leaves opposite,
decussate, very rarely spiral, alternate or verticillate, sometimes with dark
dots underneath. Inflorescence axillary, usually lax cymose, rarely flowers in
fascicles. Flowers bisexual, 4- or 5-merous. Calyx deeply lobed, imbricate.
Petals imbricate, spreading or reflexed, entire. Disk fleshy or thin, flat, 4-
or 5-angular or lobed or rounded. Stamens inserted on the disk. Pistil immersed
in the disk, stigmas obscure, obtuse or discoid. Capsules loculicidal, usually
(3-) 4-5 angular or lobed, sometimes globose. Seeds with aril.