Description

Key Characters:

Growth Form: Sprawling shrubs.

Stems: Stems erect to decumbent, 10–15 dm long, unbranched, young ones villous with purple multicellular hairs, soon glabrate, internodes 5–40 mm long.

Roots:

Leaves: Leaves simple. Opposite. Blades narrowly elliptic, 80–260 mm long, 25–100 mm wide. <u>Apex</u> acuminate. Apex acuminate. <u>Base</u> cuneate. Base cuneate. <u>Upper surfaces</u> glabrous; <u>lower surfaces</u> pilose along veins (hairs purple, multicellular) and also glandular punctate, Leaves pale green on lower surface, alternate, thin, chartaceous. Upper surfaces glabrous; lower surfaces pilose along veins (hairs purple, multicellular) and also glandular punctate, Leaves pale green on lower surface, alternate, thin, chartaceous. <u>Margins</u> entire. Margins entire. Veins conspicuously reticulate on lower surface, the veins purple to purplish brown. Petioles 20–60 mm long. <b>Stipules</b> absent. Stipules absent.

Flowers: Flowers bisexual (perfect), actinomorphic, 1–3 in the leaf axils, 6–8-merous, pedicels slender, 15–30 mm long, densely villous, bracteate, bracteoles absent. <b>Calyx</b> of 5 sepals; Calyx lobes green with dark purple veins, drying pale yellow, thin, 20–28 mm long, enlarging to 22–31 mm long in fruit, villous in lower ½, margins membranous. Corolla green with purple veins, drying yellow, 20–28 mm long, the lobes elliptic, apex erose, imbricate. Stamens as many as and opposite the corolla lobes; filaments divided and connate ca. 5 mm from base, adnate to corolla tube; anthers dithecal. Ovary superior, 1-celled; ovule placentation free-central; style 1.

Fruit: Capsules broadly ovoid or subglobose; 10–15 mm long; regularly dehiscent by 6–8 valves. <b>Seeds</b> not seen.

Ploidy:

Habitat: Wet forests.

Elevation Range: 610–700 m.