Quaqua acutiloba (N.E.Br.) Bruyns

Small succulent forming clump 80-300 mm diam. Stems 40-150 mm long, 15-20 mm thick, decumbent, green to suffused with purple or brown; tubercles 3-6 mm long, conical, spreading, laterally flattened towards base and joined into 4-5 angles along stem, each tipped with sharp hardened yellow tooth, without stipular denticles. Inflorescences of 1-3 usually successively opening flowers towards tips of stems; pedicel 1-2 mm long, 1 mm thick, spreading and holding flower facing horizontally; sepals 2.0-2.5 mm long, ovate-lanceolate, acute, adpressed to corolla. Corolla 8.5-13.5 mm diam., campanulate to rotate; outside green-purple; inside from uniformly purple-black to mottled with purple-black on yellow-green to uniformly yellow-green with area around gynostegium usually paler than rest, glabrous and smooth; tube <1.5 mm deep and not quite containing column, very broadly and shallowly V-shaped; lobes 3-6 mm long, 2.5-3.5 mm broad at base, ascending to spreading, deltate. Corona 1.3-1.5 mm tall, 3.0-3.8 mm broad (relatively broad and short), dark maroon to red or yellow, narrowing towards base and without stipe; outer lobes <1 mm long, ascending to erect, divided deeply into 2 erect deltoid lobules, fused laterally in lower half to bases of inner lobes; inner lobes ±1 mm long, adpressed to backs of anthers and exceeding them but usually not meeting in centre, linear to deltoid, obtuse to emarginate, dorsiventrally flattened, with low swollen obtuse dorsal projection just in front of outer lobes.