Oliverella Tiegh.

Small shrubs, with a single haustorial attachment; hairs short, simple, spreading. Leaves opposite to alternate, with lower nerves generally more ascending. Umbels solitary in axils, pedunculate, many-flowered; bract saucer-shaped, with subulate to foliaceous limb. Calyx rim-like. Corolla 5-merous, hairy, opening down one side; buds slightly curved, with ellipsoid apical swelling; tube green, short, with internal projections from infold at sinuses between lobes or flaps halfway down; lobes red, sometimes grey outside on upper part, separate below, framing vents of mature bud, coherent above, free at tips, inrolled at anthesis. Filaments attached to corolla-lobes, filiform below, thickened above, inrolled; anthers 4-thecous, with small connective-appendage. Style filiform; stigma capitate. Berry red, obovoid, with persistent calyx.