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

477. Rhododendron huguangense P. C. Tam, Bull. Bot. Res., Harbin. 2(1): 98. 1982. 1982.

大鳞杜鹃 da lin du juan

Rhododendron hukwangense P. C. Tam.

Shrubs, ca. 3 m tall; young shoots cylindric, gray-brown, glabrous. Petioles stout, 15–20 mm, semicircular, grooved, pubescent abaxially, sparsely glandular-setose adaxially; leaf blade leathery, oblong or oblong-lanceolate, 10–13.5 × 3–4.5 cm; base broadly cuneate or subrounded; margin entire and slightly revolute; apex acuminate; midrib impressed above, prominent abaxially; lateral veins thin, ca. 16-paired, net veins impressed adaxially, obsolete abaxially. Inflorescence terminal, umbellate, 4–5-flowered; flower buds sticky. Pedicel 1.2–1.5 cm, glabrous; calyx lobes usually triangular, 1–2 mm, occasionally linear-subulate, up to 7 mm, margin pectinate with sparse short setae; corolla funnel-campanulate, white to yellowish, 4.5–4.8 cm, tube cylindric, ca. 15 × 4.5 mm, lobes 5, spathulate, ca. 3.3 cm; stamens 10, unequal, 3–4 cm, filaments puberulent below middle; ovary ca. 7 mm, glabrous; style 4–4.2 cm, longer than stamens, glabrous. Capsule not known. Fl. May.

Forest margins, mountain slopes; 800–1300 m. Guangdong, E Guangxi, S Hunan.


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