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

340. Rhododendron pubicostatum T. L. Ming, Acta Bot. Yunnan. 3: 119. 1981.

毛脉杜鹃 mao mai du juan

Shrubs ca. 3 m tall; young shoots and petioles densely tawny-tomentose. Petiole 15–20 mm; leaf blade leathery, oblong to ovate-oblong, 8.5–12 × 3.3–4.5 cm; base rounded; apex acuminate, apiculate; abaxial surface ± deciduous yellow-brown woolly-tomentose only along midrib; adaxial surface slightly rugulose, glabrous. Inflorescence racemose-umbellate, ca. 6-flowered; rachis ca. 5 mm, tomentose. Pedicel 1.5–2 cm, densely glandular-hairy and pubescent; calyx 5–7 mm, oblong, with shortly glandular hairs outside and on margin; corolla funnel-campanulate, white flushed pink, with crimson flecks, 3.5–4 cm, pubescent at base inside; lobes 5, subrounded; stamens 10, unequal, filaments pubescent at base; ovary ca. 5 mm, densely yellow-brown tomentose and short-glandular-hairy; style shorter than corolla, tomentose at base, also with a few glands. Capsule oblong-cylindric, slightly curved, 13–23 × 6–7 mm, surrounded by persistent calyx. Fl. May, fr. Nov.

Rhododendron thickets; 2200–3700 m. NE Yunnan.


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