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FOC | Family List | FOC Vol. 14 | Ericaceae

1. Rhododendron sect. Brachycalyx Sweet, Brit. Fl. Gard. ser. 2, 1: t. 95. 1831.

轮生叶组 lun sheng ye zu

Low shrubs, deciduous, rarely evergreen, branchlets subverticillate, glabrous or villous. Leaf blade villous or silky-pubescent, glabrescent. Inflorescence 1- to many-flowered; corolla rotate-campanulate or rotate-funnelform, pale rose to purple or red, rarely white, often with flecks within and glabrous on outer surface; stamens 5–10, unequal; ovary villous and/or glandular. Capsules oblong-ovoid to cylindric, rarely conical-ovoid.

About 23 species: E and SE Asia, mostly in Japan; four species (all endemic) in China.

1 Ovary and capsule glabrous; leaves abaxially with lateral veins pubescent.   492 Rhododendron huadingense
+ Ovary and capsule densely villous and strigose; leaves abaxially with lateral veins not pubescent.   (2)
2 (1) Leaf blade ovate, 2–3(–5.5) cm; petiole usually ca. 2 mm, densely ferruginous-pubescent; corolla lilac-purple; pedicel slightly curved.   490 Rhododendron farrerae
+ Leaf blades elliptic, ovate-lanceolate or ovate-rhomboidal, 3.5–7.5 cm; petiole 5–7 mm, glabrescent or sparsely pilose; corolla pink or purplish red; pedicel erect.   (3)
3 (2) Pedicels densely softly yellow-brown-hairy; leaf margin entire or rarely serrate.   491 Rhododendron mariesii
+ Pedicels densely golden-strigose and stipitate-glandular; leaf margin obscurely crenulate.   493 Rhododendron chilanshanense

Lower Taxa


Related Objects  
  • A taxonomic revision of Rhododendron subg. Tsutsusi sect. Brachycalyx (Ericaceae)
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