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

443. Rhododendron eudoxum I. B. Balfour & Forrest, Notes Roy. Bot. Gard. Edinburgh. 11: 62. 1919.

华丽杜鹃 hua li du juan

Dwarf shrubs, 0.3–1.2(–1.8) m tall; bark gray-brown, usually falling off in flakes; shoots 2.2–2.4 mm in diam. below inflorescence; young shoots tomentose, with a few weak setae. Petiole 5–10 mm, tomentose, intermixed with a few setulae; leaf blade leathery, long-elliptic to oblong-obovate, 2.3–3 × 0.8–1.4 cm; base cuneate; margin revolute; apex obtuse or rounded, apiculate; abaxial surface whitish to brownish, indumentum thin, discontinuous; adaxial surface green, glabrous; midrib grooved adaxially; lateral veins 7–9-paired, impressed adaxially. Inflorescence umbellate, 3–5(–10)-flowered. Pedicel 1–1.2 cm, tomentose, also glandular; calyx cupular when well-developed, undulate, 2–7 mm, sparsely tomentose, glandular; corolla tubular-campanulate to campanulate, fleshy, pink to rose-carmine, 2.5–4 cm, with 5 nectar pouches at base, lobes 5, emarginate; stamens 10, 1–1.6 cm filaments glabrescent; ovary ovoid, 3.4–4 mm, predominantly glandular to predominantly tomentose; style ca. 2.8 cm, glabrous. Capsule cylindric, ca. 12 mm, with vestigial glands. Fl. Jun, fr. Oct–Nov.

Bamboo forests, alpine Rhododendron thickets, stony slopes, cliffs; 3300–4300 m. SE Xizang, NW Yunnan.

1 Ovary predominantly glandular; leaf blade 2.3–3 cm.   443a var. eudoxum
+ Ovary predominantly tomentose; leaf blade 3.5–9 cm.   (2)
2 (1) Leaf blade 7–9 cm, indumentum brownish; corolla ca. 4 cm.   443b var. brunneifolium
+ Leaf blade 3.5–7 cm, indumentum whitish; corolla 3–3.5 cm.   443c var. mesopolium

Lower Taxa


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