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

7. Rhododendron sinonuttallii I. B. Balfour & Forrest, Notes Roy. Bot. Gard. Edinburgh. 13: 60. 1920.

华木兰杜鹃 hua mu lan du juan

Shrubs, 1–3(–5) m tall; branches stout, densely scaly. Petiole stout, not grooved, 15–30 mm, densely scaly; leaf blade oblong-elliptic, 14–26 × 4.5–12 cm, narrowing toward both ends; apex acute; abaxial surface dirty white, scales dense, small, unequal, brownish red; adaxial surface dark green, scales sparse or absent; veins conspicuously wrinkled, raised abaxially, concave adaxially. Inflorescence terminal, subumbellate, 3–6-flowered; rachis enlarged, 15–20 mm; flower bud scales falling off early. Flowers fragrant. Pedicel stout, ca. 2.5 cm, densely scaly, pubescent; calyx pale red, deeply 5-lobed; lobes 20–28 mm, oblong, persistent in fruit, densely scaly, gray-pubescent; corolla broadly campanulate, pale yellowish white, lower tube yellow, 1–1.4 cm, outer surface densely scaly; lobes rounded, shorter than tube; stamens 10, as long as corolla tube, filaments lower half white pubescent, anthers ca. 12 mm; ovary 5-locular, densely scaly; style stout, longer than stamens, basal part densely scaly; stigma discoid, 6–9 mm in diam. Capsule cylindric, lobes keeled, 50–70 × ca. 24 mm. Fl. May–Jun.

Pinus forests, cliffs in forests, thickets, epiphytic or terrestrial; 1200–2800 m. SE Xizang, NW Yunnan.


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