plant very like S. variegata, glabrous in all parts, compactly branched; stems 2–3 in. long, 4–5 lin. thick, glabrous; flowers 1–2 together near the base of the stems, successively developed; pedicels 2/3–1 in. long; sepals 2–2 1/2 lin. long, ovate, acute or acuminate; corolla rather small, about 1 1/2 in. in diam., with a distinct annulus on the disk; inner face transversely rugose on the lobes, granulate-tuberculate on the annulus, glabrous and not ciliate, sulphur-yellow, covered with rather small irregularly scattered dark purple-brown spots, without intermingling lines, those on the paler annulus smaller than those on the lobes, which are about 1/2 in. long, broadly ovate, acute; annulus with a recurved-spreading acute margin; outer corona-lobes 1 1/2 lin. long, 3/4–1 lin. broad, oblong, emarginate or bifid, sometimes with a minute tooth at the base of the notch, very pale, greenish or greenish-yellow, with or without a central suffused and dotted stripe extending to about 2/3 of the way up or some dots around the teeth; inner corona-lobes 2-horned, pale yellow or greenish, with or without purple-brown dots; inner horn 1 1/2–1 2/3 lin. long, erect, recurving at the slightly clavate apex; outer horn ascending-spreading, half as long as the inner or shorter, subulate. null