四川白珠 si chuan bai zhu

Gaultheria pyroloides J. D. Hooker & Thomson ex Miquel var. cuneata Rehder & E. H. Wilson in Sargent, Pl. Wilson. 1: 554. 1913.

Shrubs prostrate or erect, 10–60 cm tall, many branched. Twigs terete, densely pubescent. Leaves dense; petiole 1–2 mm, pubescent; leaf blade obovate or narrowly obovate, 1.2–3.5 × 0.4–1.2 cm, leathery, glabrous, abaxially sparsely glandular punctate, secondary veins 2–4 pairs, fine veins slightly raised abaxially, slightly impressed adaxially, base narrowed, rarely obtuse, margin crenulate-mucronate, apex acute. Inflorescences terminal and from upper foliate axil, racemose, 1.5–4.5 cm, puberulous; bracts broadly ovate, 2–3 mm, glabrous. Pedicel 2–4 mm, puberulous; bracteoles 2, subapical, ovate or ovate-triangular, 1.5–2 mm. Calyx whitish, glabrous; lobes triangular-ovate, ca. 1.5 mm, margin ciliolate. Corolla white, urceolate, 4–5 mm, abaxially glabrous; lobes recurved, very small. Filaments swollen towards base, puberulous; thecae 2-awned. Ovary sericeous. Calyx at fruiting white, fleshy; capsule 4–6 mm in diam., sericeous. Fl. Jul, fr. Aug. 2n = 22*.

Rhododendron forests, Abies forest margins, thickets, rocks; 2000–3900 m. NE Guizhou, W Sichuan, N Yunnan.