branchlets slender, flexuose, puberulous with or without the admixture of longer gland-tipped hairs; leaves 3-nate in more or less distant whorls, sometimes alternate, spreading or ascending, 1/3– 3/4 lin. long with the petiole, 1/6– 1/4 lin. broad, linear or ovate-oblong, convex on both sides, sometimes very turgid and almost subcylindric, with a long gland-tipped hair at the apex and 1–3 on each margin, often also minutely ciliate, otherwise glabrous, or slightly puberulous on the upper side; flowers 1–3, terminal, sessile or with a minute pedicel 1/8– 1/5 lin. long; calyx 1/2 lin. long, subequally 4-lobed to the middle, obconic-campanulate, glabrous, ciliate, 1 or 2 lobes slightly longer than the others, ovate, acute, tipped with a long hair, the rest subquadrate, very obtuse or subtruncate, apiculate; corolla slightly exceeding the calyx, 3/5 lin. long, obconic-campanulate, 4-lobed, glabrous, not ciliate; lobes short, rounded or deltoid, obtuse, very minutely denticulate; stamens 4, about as long as the corolla; filaments and basal part of the anthers connate, 1/4– 1/3 lin. long; ovary globose, minutely puberulous at the base of the style or glabrous; style 1/2 to nearly 1 lin. long, much exserted, glabrous; stigma large, peltate, flat. null
