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

386. Rhododendron nakotiltum I. B. Balfour & Forrest, Notes Roy. Bot. Gard. Edinburgh. 12: 143. 1920.

德钦杜鹃 de qin du juan

Shrubs, 1–3.5 m tall; old branches glabrescent; young shoots shiny, green, 5–6 mm in diam., sparsely white-floccose. Leaf blade leathery, oblong to obovate-oblong, 6–11 × 3–4.5 cm; base subrounded; apex acute and apiculate; abaxial surface with indumentum 2-layered, upper layer loose, fawn, floccose, ± detersile when mature, persistent only along midrib, hairs long-rayed, lower layer thin, appressed; adaxial surface glabrous except in groove of midrib. Inflorescence compact, umbellate, 12–15-flowered; rachis 5–10 mm, sparsely pubescent. Pedicel 1.5–2 cm, densely floccose; calyx lobes 5, 1–1.5 mm, rounded, glabrous, sparsely ciliate on margin; corolla campanulate, white flushed rose to pink, with red spots and purple basal blotch inside, ca. 3.5 × 4 cm; lobes 5, subrounded; stamens 10, unequal, filaments densely puberulent; ovary ca. 5.5 × 2.5 mm, densely rufous floccose-tomentose; style ca. 2.5 cm, glabrous, stigma discoid. Fl. Jun.

Thickets on mountain slopes; 3300–4000 m. NW Yunnan.


 

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