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

347. Rhododendron trichogynum L. C. Hu, Acta Phytotax. Sin. 30: 545. 1992.

理县杜鹃 li xian du juan

Small trees, ca. 7 m tall; branchlets and petioles glabrous. Petiole 10–15 mm; leaf blade leathery, ovate-elliptic to oblong, 7.5–9 × 3.2–4.5 cm; base broadly cuneate or subcordate; apex acute and apiculate; abaxial surface indumentum thin, tawny, ± agglutinated; adaxial surface green, slightly rugulose, glabrous. Inflorescence racemose-umbellate, 8–15-flowered; rachis ca. 10 mm. Pedicel 1–2 cm, glabrous or sparsely floccose; calyx deeply lobed; lobes 5, large, oblong, puberulent at base outside, margin glandular-ciliate, 8–10 × 3–4 mm; corolla campanulate, white, crimson dotted on upper lobes, 3–3.5 × ca. 4 cm, puberulent at base inside, lobes 5; stamens (9 or)10, filaments puberulent below middle; ovary ca. 5 mm, densely pale brown-pubescent; style ca. 2.7 cm, glabrous, stigma nearly discoid. Fl. Jun.

Forests, mountain slopes; ca. 3100 m. NW Sichuan.


 

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