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FOC | Family List | FOC Vol. 14 | Ericaceae | Rhododendron

255. Rhododendron sinofalconeri I. B. Balfour, Notes Roy. Bot. Gard. Edinburgh. 9: 272. 1916.

宽杯杜鹃 kuan bei du juan

Shrubs or small trees, 3–10 m tall; branchlets stout, 8–12 mm, grayish tomentose when young, glabrescent. Petiole terete, 15–25 mm, sparsely tomentose; leaf blade thick, leathery, oblong-elliptic, broadest above middle of blade, 17–32 × 11–16 cm; base wide, cuneate or rounded; apex obtuse; abaxial surface with soft and spongy, 2-layered indumentum, pale cinnamon, upper layer of broad cup-shaped fimbriate hairs, lower layer thin, compacted; adaxial surface green, glabrous; midrib prominent abaxially, flat adaxially; lateral veins 16–19-paired, prominent abaxially. Inflorescence 15–20-flowered; rachis ca. 35 mm, tomentose. Pedicel 2–3 cm, with similar hairs; calyx teeth 6–8, 1–2 mm, tomentose; corolla obliquely campanulate, pale yellow, 3.5–5 cm, lobes 8, suborbicular, ca. 1 × 1.5 cm; stamens 16, 1–3 cm, filaments pubescent at base; ovary terete, 8–10 mm, densely fulvous woolly-tomentose; style ca. 2.5 cm, glabrous. Capsule 30–40 mm, tomentose. Fl. Mar–Apr, fr. Oct.

Mixed forests, thickets; 1600–2500 m. S Yunnan [N Vietnam].


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