Acmadenia macropetala (R.Glover) Compton

Shrubs about 0.5 m tall, diffuse, spreading amongst other vegetation, single-stemmed at base; a lower branch showed 20 growth rings. Branches slender, lax, glabrous, fairly smooth, leaf scars inconspicuous, bark brownish-grey. Branchlets very slender, fairly long, puberulous, never quite straight. Leaves 3.3-7 mm long, 1.3-1.7 mm broad, lanceolate, obtuse, virtually sessile, ciliolate, glabrous, adpressed erect, opposite, decussate, adaxially concave, abaxially round keeled, multi-gland-dotted. Bud acute, pink. Inflorescence 20 mm diam., solitary, terminal between a pair of incipient branchlets. Bracts two, opposite, leaf-like, 2.5 mm long, 1.5 mm broad, ovate-lanceolate, obtuse, glabrous, adpressed; margins ciliolate, broadly translucent; abaxially round-keeled. Bracteoles two, 3 mm long, 1.7 mm broad, ovate-lanceolate, obtuse, adpressed, glabrous; midrib prominent, rounded, gland-dotted; margins ciliolate, broadly translucent. Calyx lobes five, 4.4 mm long, 2 mm broad, oblong, obtuse; margins broadly translucent, pink, ciliolate; midrib rounded, green, gland-dotted in two rows; adaxial surface very sparsely pubescent in the middle below. Petals 10-12 mm long; limb 7 mm long, 4.7 mm broad, elliptic, obtuse, glandular apiculate, gland-dotted in two rows, spreading; claw 3-4 mm long, 1.6 mm broad, pubescent, ciliolate. Staminodes five, up to 3 mm long, acicular, glabrous. Filaments five, becoming 2.5 mm long, erect, acicular, glabrous. Anthers five, 1.7 mm long, 0.8 mm broad, red/yellow; apical gland 1.2 mm long, conical, incurved above. Pollen 55 µ long, 33 µ diam., oblong. Disc obvallate, exceeds the ovary, surrounds the stigma at first. Stigma 0.7 mm diam., globose, capitate, green. Style becoming 1.7 mm long, terete, glabrous, erect. Ovary 5-carpellate, 1 mm diam., glabrous. Fruit 5-carpellate, 7 mm long, 4.5 mm diam., pubescent between the carpels; horns 1-2 mm long, emarginate. Seed 4.7 mm long, 1.5 mm broad, black, shining; aril black on one side.