stems 2–4 (or more) in. long, 3–5 lin. thick, arching-procumbent and then diving underground, sometimes rising again to the surface, but always finishing their growth underground, forming loops 1/2–1 in. high, very obtusely and somewhat obscurely 4-angled, with slightly flattened sides, somewhat tessellately tuberculate along the angles, with the tubercles varying from scarcely prominent to 3/4 lin. long, apiculate, glabrous, green, not glaucous, flowering along the sides or under the loops; flowers 1–3 in a fascicle; pedicels 1–1 1/2 lin. long, glabrous, green; sepals 1 lin. long, ovate, subulate-acuminate, recurved at the tips, glabrous; corolla in general outline acuminate from a short ovoid base, glabrous and smooth outside and within; tube 1 1/2 lin. long, cup-shaped or subhemispheric, straw-coloured or pale yellowish outside, dark purple within, the dark colour divided to half-way down into 5 ovate lobes or rounded crenations extending up the base of the lobes; lobes 3 1/2 lin. long, 1–1 1/4 lin. broad at the base, thence gradually tapering to the acute connate tips, not recurved at the margins, but separating so as to form narrow lanceolate openings between them, pinkish or pale purple-tinted on the back, creamy-white, spotted with purple at the tips on the inner face, not ciliate; outer and inner corona-lobes apparently in one series, bright yellow, with the 5 lobes alternating with the anthers (outer corona) minute, scarcely 1/4 lin. long, deltoid, acute, ascending-spreading, the other 5 (inner corona) 1/2 lin. long, more than 1/4 lin. broad and almost as thick, erect, subclavate-oblong, very obtuse or subtruncate, scarcely exceeding the level of the anthers, with their rounded backs projecting like 5 stout ribs beyond the outer lobes. null
