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3. Rhododendron subsect. Moupinensia (Hutchinson) Sleumer, Bot. Jahrb. Syst. 74: 534. 1949.

川西杜鹃亚组 chuan xi du juan ya zu

Fang Ruizheng (方瑞征 Fang Rhui-cheng); David F. Chamberlain

Rhododendron ser. Moupinensia Hutchinson in J. B. Stevenson, Sp. Rhodod. 502. 1930 ["Moupinense"].

Shrubs, 0.5–1.5 m tall, often epiphytic; young shoots scaly, densely or sparsely brown-hispid; leaf blade leathery, margin revolute; abaxial surface scales dense, brown, unequal; adaxial surface often hairy at least near base of midrib. Inflorescence terminal, cymose, 1- or 2-flowered. Calyx developed, 2–4 mm, 5-lobed; corolla broadly funnelform, white, sometimes tinged pale red, or rosy red, outer surface glabrous, pubescent in tube; stamens 10, unequal; ovary 5-locular; style erect or curved, without scales, glabrous or base pubescent. Capsule oblong or ellipsoid, 10–23 mm. Seed winged.

Three species: China.

1 Style longer than corolla; corolla ca. 4 cm; leaf blade 2–4(–6) cm.   38 Rhododendron moupinense
+ Style shorter than corolla; corolla 1.5–3 cm; leaf blade 1–2 cm.   (2)
2 (1) Corolla rosy red, tube pubescent inside; scales on leaf abaxial surface ca. 1 × their own diameter apart.   39 Rhododendron dendrocharis
+ Corolla white, tube glabrous inside; scales on leaf abaxial surface contiguous.   40 Rhododendron petrocharis

Lower Taxa


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