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

102. Rhododendron declivatum Ching & H. P. Yang, Bull. Bot. Res., Harbin. 3(2): 89. 1983.

徒生杜鹃 tu sheng du juan

Small shrubs, 0.3–0.4 m tall; branchlets ferruginous to black scaly. Petiole ca. 1.5 mm, scaly; leaf blade broadly elliptic, 1–1.5 × 0.6–1 cm; base broadly cuneate or rounded; apex rounded, mucronate; abaxial surface pale brown or fawn, scales contiguous, 2-colored, pale yellow and reddish brown, nearly equal in number and intermixed; adaxial surface dark green, scales slightly contiguous. Inflorescence 2–4-flowered. Pedicel ca. 0.2 cm, scaly; calyx salver-shaped; lobes 0.8–1.5 mm, broadly triangular or orbicular, scales absent, margin ciliate; corolla narrowly funnelform, purple, ca. 1.4 cm, tube ca. 4 mm, throat pubescent; stamens 10, shorter than corolla, filaments pubescent in lower part; ovary 1.5–1.8 mm, densely scaly; style ca. 8 mm, longer than stamens, sparsely pubescent at base. Capsule ovoid or globose, 3–4 mm, densely scaly. Fl. Jul–Aug, fr. Sep–Oct.

Scrub on mountain slopes; 2600–3800 m. SW Shaanxi (Taibai Shan).


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