Englerina kwaiensis (Engl.) Polhill & Wiens

Stems spreading to 1 m. or so, whole plant glabrous; twigs slightly compressed, soon thickened.. Petiole 1–6 mm. long; lamina coriaceous, dark green above, paler beneath, lanceolate to ovate-elliptic, 7–14 cm. long, 2–6 cm. wide, acuminate at the apex, cuneate at the base, slightly sinuate at edges, with 5–8 pairs of lateral nerves.. Flowers 2–3 per umbel in each axil and crowded at older thickened nodes; peduncle obsolete, the bracts arising from cupular sockets formed by the pedicel; bract cupular, 1.5–2 mm. long.. Receptacle 1.2–2 mm. long.. Calyx tubular, 2–3 mm. long, erose.. Corolla 3.8–5 cm. long, tube orange to red, more yellow over vents, lobe-tips darker orange to red; buds narrow, terminal swelling slight, 4 mm. long; tube slender, slightly broadened upwards, 2.2–3.5 cm. long, with a short V-slit; lobes erect, linear-spathulate, slightly hardened inside.. Filaments transversely corrugate; tooth subulate to 1.5 mm. long or often reduced to a small ledge; anthers 2.5–3 mm. long.. Berry not seen.