Pittosporum tenuivalvatum Chang & Yan

Shrubs or small trees. Young branchlets glabrous; old branchlets gray, sparsely lenticellate. Petiole 1–1.5 cm; leaf blade pale green abaxially, dark green adaxially, oblong or oblanceolate, 7–12 × 2.5–4.5 cm, membranous, glabrous abaxially, lateral veins 7–9-paired, slightly visible abaxially, indistinct adaxially, reticulate veins indistinct, base cuneate, margin slightly rugose, apex acute or acuminate. Inflorescences terminal, umbellate, 2–8-flowered; peduncle short; pedicels slender, ca. 1 cm, glabrous. Sepals triangular-ovate, ca. 2 mm, glabrous, margin ciliate. Petals free, ca. 10 × 1–1.5 mm. Stamens 7–8 mm. Pistil ca. 6 mm; ovary pubescent; placentas 2, parietal; ovules 4–22; stipe short; style ca. 2.5 mm, glabrous. Infructescence 1- or 2-capsuled; pedicels slender, 1.5–2 cm. Capsule obovoid, ca. 2 cm, dehiscing by 2 valves; pericarp obovate, 2–2.5 × 1–1.6 cm, ca. 0.4 mm thick; placentas at base to middle of valves; stipe 3–4 mm. Seeds 8–12, subglobose, 6–7 mm; funicle slender, ca. 2.5 mm. Fl. Mar–May, fr. Jun–Oct.

NW Guangxi (Donglan Xian, Lingyun Xian).

Forests, thickets; ca. 1500 m.