17. Gaultheria semi-infera (C. B. Clarke) Airy Shaw, Bull. Misc. Inform. Kew. 1940: 306. 1941.
五雄白珠 wu xiong bai zhu
Diplycosia semi-infera C. B. Clarke in J. D. Hooker. Fl. Brit. India 3: 459. 1882; Gaultheria forrestii Diels var. setigera C. Y. Wu & T. Z. Hsu.
Shrubs erect, 0.5–1(–2.5) m tall. Twigs terete, scabrid, densely brown hispid. Leaves scattered; petiole 3–5 mm, glabrous or sparsely hispid; leaf blade oblong or oblong-elliptic, 4–11 × 1.2–3.5 cm, leathery, abaxially sparsely hispidulous or glabrescent, adaxially glabrous, secondary veins 3 or 4 pairs, secondary and fine veins raised abaxially, slightly impressed adaxially, base cuneate or obtuse, margin serrate, apex acute, distinctly mucronate. Inflorescences axillary, narrowly racemose, 1.5–3(–7) cm, few- to many flowered, pubescent; bracts triangular-ovate, 1–3 mm, fimbriate. Pedicel 1.5–2.5 mm; bracteoles apical, ca. 1.2 mm, margin ciliolate. Calyx lobes triangular, ca. 2.5 mm, margin ciliolate. Corolla white, tubular to urceolate, 2–3 mm, abaxially hairy; lobes very short. Filaments basally swollen, ca. 1 mm, ciliolate; thecae 2-awned. Ovary half-inferior, appressed-sericeous. Calyx at fruiting purple-blue, fleshy; capsule ellipsoidal to globose, 3–5 mm in diam. Fl. Jun, fr. Jul–Aug.
Pinus forest margins, thickets on slopes; 2000–2700(–3500) m. S Xizang, SE and W Yunnan [Bhutan, NE India, Myanmar, Nepal, Sikkim].
The fruit is edible.