Aerial stem-parasitic shrubs, robust, with epicortical runners bearing secondary haustoria. Leaves opposite. Inflorescence capitate, consisting of several flowers in two rows at the apex of a common peduncle, enclosed by two foliaceous bracts which are connate at the margins over them during development; flowers each on an articulate pedicel with a small bract at the apex of the distal segment and sometimes also at the apex of the proximal segment. Corolla 6-merous, gamopetalous, almost regular. Anthers basifixed, immobile. Style simple, with a knob-like stigma. Fruit ovoid. Fig. 40.