14. Gaultheria tetramera W. W. Smith, Notes Roy. Bot. Gard. Edinburgh. 11: 211. 1919.
四裂白珠 si lie bai zhu
Shrubs erect, 0.8–1(–4) m tall. Twigs terete, densely brown hispid. Leaves scattered; petiole 2–3(–5) mm, hispid or subglabrous; leaf blade elliptic, obovate, or oblong, 1.5–6 × 1–3 cm, leathery, abaxially scattered hispidulous, later papillose, adaxially glabrous, secondary veins 3 or 4 pairs, secondary and fine veins raised abaxially, impressed adaxially, base cuneate to broadly cuneate, margin serrate, apex acute, distinctly mucronate. Inflorescences axillary, rarely terminal, racemose, erect, 1–3 cm, 2–10-flowered, secund, puberulous; bracts triangular-ovate, ca. 1 mm, abaxially puberulous. Pedicel 2.5–3 mm; bracteoles 2, median to subapical in fruit, similar to bracts. Flowers 4-merous. Calyx puberulous; lobes triangular-lanceolate, 1.5–2 mm, ciliolate. Corolla white, urceolate, ca. 4 mm, abaxially puberulous, adaxially pubescent; lobes very short. Filaments conical, ca. 1 mm, ciliolate; anthers ca. 1 mm, thecae 2-awned. Ovary sericeous; style villous-hairy. Calyx at fruiting blue-purple, with bloom; capsule globose, 4–6 mm in diam. Fl. May, fr. Aug–Dec.
Evergreen forests, including those dominated by Picea; 1000–2600(–3200) m. SE Xizang, W Yunnan.