branchlets glandular-puberulous or minutely tomentose, mingled with longer simple and gland-tipped hairs, greyish; leaves 3-nate, 1/3–1 lin. long, 1/6– 1/3 lin. broad, ovate or linear, flat above, grooved down the very convex back, glabrous, sometimes ciliate with 2–3 long gland-tipped hairs on each side and one at the apex, sometimes merely serrate, with or without a few similar hairs or tubercles on the back; flowers 1–3 together, sessile, terminal or axillary, or on exceedingly short axillary branchlets racemosely scattered along the branches; calyx 1/3 lin. long, obconic or broadly campanulate, unequally 4-lobed, glabrous or puberulous, ciliate, sometimes rather densely, with simple and branched hairs and 1 or more of the lobes often with 1 or more long gland-tipped hairs; corolla 1/3– 1/2 lin. long, campanulate, with 4 concave, deltoid, acute or rounded lobes, which are sometimes very minutely denticulate and glabrous or minutely puberulous on the back; stamens 4, equalling or slightly exceeding the corolla; filaments and the quadrate anthers connate; ovary puberulous around the base of the 1/6 lin. long style; stigma large, peltate, just exceeding the anthers. null