Description

Key Characters:

Growth Form: Unbranched or sparingly branched shrubs.

Stems: Stems 0.8–0.9 cm diam. near apex. glabrous, pith chambered.

Roots:

Leaves: Leaves simple. Alternate. Blades oblong, 12.5–17 X 3.5–4.2 cm. Apex acuminate or cuspidate. Base obtuse. Upper surfaces green, glabrous; lower surfaces light green. glabrous. Margins callose–crenulate. Petioles 5–10 cm long. 1.7–2 mm diam., ⅖–⅔ as long as the lamina, glabrous. Stipules absent.

Flowers: Flowers in racemes 30– to 40–flowered over their life, but only a few open at any one time; peduncle ascending, 35–50 rnm long, 1.3–1.7 mm diam., glabrous; rachis 12–25 mm long, glabrous; bracts triangular, 1 x 0.5 mm, subtending the pedicels, deciduous, pubescent, acuminate at apex. Flowers bisexual (perfect). Pedicels ascending, 5–11 mm long, 0.3–0.5 mm diam., bibracteolate at about the middle. glabrous; bracteoles linear, 0.4–0.6 X 0.1–0.2 mm, acuminate at apex. Hypanthium globose or broadly elliptic, 2.3–2.7 mm long. 2.8–3 mm diam., 1/7–1/6 as long as the corolla, glabrous. Calyx 5-lobed, lobes triangular or deltate, 0.3–0.4 X 0.3–0.4 mm. pubescent, acuminate at apex, tube adnate to ovary. Corolla zygomorphic, 15–16.5 mm long, glabrous; corolla tube gently curved, 9–10 mm long, 2.4–2.5 mm diam. at base, gradually narrowing to 1.2–1.4 mm diam. at middle, then increasing to 2.2–2.8 mm diam. at mouth, dorsally cleft to about the middle; dorsal corolla lobes linear triangular, 6–7.5 X 0.8–1 mm, ⅗–⅘ as long as the tube, acuminate at apex; ventral corolla lobes narrowly triangular, 5–6 X 1–1.2 mm. acuminate at apex. Stamens 5, alternate with corolla lobes, connate; staminal column slightly exserted, emerging from the corolla between the dorsal lobes; filament tube slightly decurved, 12–14 mm long, 0.4–0.7 mm diam., glabrous; anther tube slightly decurved 1.5–1.8 mm diam., the surfaces glabrous; dorsal anthers 4.5–5 mm long. ⅓–⅔ as long as the filaments; ventral anthers 3–3.5 mm long. with tufts of hairs 0.9–1.1 mm long at apex. Ovary inferior, 2-celled; ovule placentation axile; stigma 2-lobed, wet or dry, appressed and nonreceptive as the style grows through the anther tube, pushing out the pollen, after which the stigmas spread apart and become receptive.

Fruit: Mature fruit not seen. Seeds: mature seeds not seen.

Ploidy:

Habitat:

Elevation Range: