Acmadenia tenax I.Williams

Shrubs about 0.3 m tall, sometimes creeping about 2 m along ledges, growing from a single stem at base, firmly rooted in crevices in the cliff face. Branches tough, sprawling or hanging down, bent at all angles, with a dark brown rough bark. Branchlets fairly erect, slender, glabrous, very short, somewhat hidden by the leaves. Leaves 10-3.5 mm long (including the petiole 0.8-1 mm long), 1.3-1.7 mm broad, linear-lanceolate, acute, alternate, spreading-erect, somewhat recurved, crowded, glabrous; apex with a small blunt mucro; margins irregularly and minutely serrulate or denticulate, narrowly cartilaginous; adaxial surface smooth and flat when fresh; abaxial surface rounded with two rows of gland dots to either side of the midrib. Inflorescence 13 mm diam., solitary, terminal, sessile, white. Bract 1.6 mm long, 0.6 mm broad, lanceolate-apiculate with a finger-like tip, ciliate, glabrous with 2-3 gland dots on the midrib, adaxially pubescent. Bracteoles two, 1.4 mm long, 0.6 mm broad, ovate, sub-acute with a blunt apex, ciliate with broad translucent margins, glabrous with 1-2 gland dots towards the midrib, adaxially very sparsely pubescent. Calyx lobes five, 3 mm long, 1.5 mm broad, deltoid with a blunt point, glabrous, gland-dotted to either side of the midrib, erect; adaxially pubescent; margins ciliate, broadly translucent. Petals five, 7-9 mm long, 4-4.5 mm broad, white, glabrous, clawed; limb recurved, obovate, margins with one or two minute cilia, abaxially gland-dotted; claw about 2 mm long narrowing to the base. Staminodes five, about 1 mm long, pale, glabrous, apex with a somewhat pointed gland. Filaments five, becoming 2.5 mm long after anthesis, spreading, glabrous, acicular, pale. Anthers five, before anthesis 1.2 mm long, 0.8 mm broad, yellow with a sessile, globose apical gland. Pollen 53 µ long, 27 µ broad, elliptic. Disc obvallate, rather narrow, more or less level on top, greenish, exceeds the ovary, exudes nectar. Stigma 0.25 mm diam., capitellate, green. Style deflexed at first becoming 2 mm long, erect, glabrous, persisting. Ovary 5-carpellate, glabrous, apices globose. Fruit (from Esterhuysen 15080 ) 5-carpellate, 9-11 mm long, about 6 mm diam.; carpels glabrous, strongly veined when dry, minutely gland-dotted; horns 3-5 mm long, fairly erect, each with an immersed apical gland. Seed (from Esterhuysen 15080) 4-5 mm long, 1.75 mm broad, black, shining.