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5. Rhododendron subsect. Williamsiana D. F. Chamberlain, Notes Roy. Bot. Gard. Edinburgh. 39: 478. 1982.
圆叶杜鹃亚组 yuan ye du juan ya zu
Fang Mingyuan (方明渊); David F. Chamberlain
Small shrubs, short; bark smooth; young shoots long-glandular-hairy. Leaf blade leathery, broadly ovate or suborbicular; abaxial surface sparsely setose on midrib; adaxial surface glabrous. Inflorescences short, 2–5-flowered; pedicels stout; calyx small; corolla broadly campanulate, 5–6-lobed, pinkish or purplish red; stamens 10–12(–14); filaments glabrous or hairy; ovary ovate, setose and glandular-hairy; style smooth or glandular.
Two species: China.
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Young branches with a few long glandular hairs; leaf blade broadly ovate or suborbicular; petiole and pedicels sparsely long glandular-hairy; corolla pinkish, 5- or 6-lobed; ovary glandular-hairy; style glandular. |
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256 Rhododendron williamsianum |
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Young branches setose; leaf blade elliptic or obovate; petiole and pedicels densely setose; corolla purplish red, 5-lobed; ovary setulose, with curved hairs; style glabrous. |
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257 Rhododendron leishanicum |
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Lower Taxa
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