Agelanthus sansibarensis (Engl.) Polhill & Wiens

Shrub, spreading to 1 m., with a well-developed haustorial attachment, very rarely with subcortical runners, glabrous; branchlets slightly compressed to soon terete and densely lenticellate.. Leaves mostly alternate, sometimes some ± opposite; petiole 3–20 mm. long; lamina coriaceous, dull green to yellow-green, often with a red flush, ovate to ovate-elliptic, 5–13 cm. long, 3–8(–11) cm. wide, subacute to rounded at the apex, rounded to cuneate and slightly attenuate at the base, several-nerved from near the base, other venation rather irregular.. Umbels several, sessile, with 2–3 flowers in sockets; bract cupular, oblique, with a slight triangular limb and sometimes slightly lacerate, 2–3 mm. long.. Receptacle 2–3 mm. long.. Calyx cupular, slightly toothed, 1–4 mm. long, ciliolate, split longitudinally into several segments as the corolla-base expands.. Corolla 3–5 cm. long, tube red, sometimes green-banded at the top, lobes yellow over vents, with dark red to blackish tips; apical part of bud not swollen; basal swelling subglobular, 4–6 mm. long, 3.5–6 mm. in diameter; lobes erect, slightly hardened in the upper half, pointed, 7–11 mm. long.. Filaments inflexed, yellow-green then brownish, the last 1 mm. hardened, paler, thickened; tooth 0.3–0.5 mm. long; anthers 2–3 mm. long.. Style slender, slightly expanded and red opposite the filaments, narrowed to a 3 mm. long neck; stigma capitate, 0.5–0.8 mm. diameter.. Berry red, obovoid, 8–9 mm. long, 5–6 mm. in diameter, warty; seed red.