Succulent forming loose clump to 600 mm diam. or with widely scattered stems connected beneath the soil by rhizomes, branching mainly at base. Stems 80-200(-600) mm long, 20-25 mm thick, decumbent and frequently rhizomatous, with erect above-ground portions, greyish green; tubercles 3-5 mm long, prominent, hexagonal, joined towards bases into 8 broadly obtuse angles along stem, tapering to acuminate spreading tooth. Inflorescences many per stem in upper two thirds, each with (1-)5-20 flowers opening often in rapid succession, arising from persistent peduncular patch sometimes reaching 10 mm long; pedicel 2-4 mm long, <1 mm thick, spreading with flower facing horizontally, finely papillate; sepals 2 mm long, ±1 mm broad at base, ovate-lanceolate, green with reddish brown spots, finely papillate. Corolla (10-)12-17 mm diam., rotate to reflexed; outside pale green, spotted finely with red, with scattered bristle-like papillae, otherwise glabrous and smooth; inside greenish yellow with purple-red dots, covered with conical-obtuse papillae each tipped with an acute bristle (up to 0.25 mm long); tube shallow, V-shaped, containing lower half of gynostegium; lobes 3.5-4.5 mm long, 2.5-3.5 mm broad at base, spreading, ovate-deltate to ovate-lanceolate, with apices and margins slightly recurved. Corona 4.0-4.5 mm diam., consisting of 2 series of lobes arising on staminal tube and partly intergrown; outer lobes ±1.5 mm long, ascending, truncate, bright yellow with red blotches, fused laterally in lower third with dorsal projections of inner lobes into broad cup containing only lower third of column; inner lobes ±1 mm long, adpressed to backs of anthers, dorsiventrally flattened, broadly linear, obtuse, yellow dotted with purple-red, with small obtuse dorsal projection in series with and laterally fused to outer lobes. Anthers horizontal on top of style-head, margins shrinking back to expose pollinia, rectangular. Pollinium ellipsoidal, longer than broad, insertion-crest exactly along outer edge, caudicle attached with small ± circular pad to ventral surface. Follicles erect, terete-fusiform, obclavate, slender, consisting of 2 horns diverging at 30-60°, longitudinally mottled with narrow broken purple stripes, glabrous, smooth.
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Rhizomatous, glabrous succulent, stems prostrate then erect, leafless, tessellated, green, 20-25 mm diam., 8-angled, with prominent acute tubercles. Flowers in many, subterminal, sessile, clusters of 5-20, pedicels 2-4 mm long. Corolla 12-17 mm diam., inside green-yellow, speckled with red and minutely bristly, tube minute, lobes spreading, 3.5-4.5 x 2.5-3.5 mm, ovate-deltoid, convex above. Corona yellow, spotted with red, 2-2.5 mm diam., outer lobes erect, truncate, inner adpressed to backs of anthers, dorsiventrally flattened, linear.
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