Rhododendron subsect. Campylocarpa in Flora of China @ efloras.org

6. Rhododendron subsect. Campylocarpa (Tagg) Sleumer, Bot. Jahrb. Syst. 74: 547. 1949.

弯果杜鹃亚组 wan guo du juan ya zu

Fang Mingyuan (方明渊); David F. Chamberlain

Rhododendron subser. Campylocarpa Tagg in J. B. Stevenson, Sp. Rhodod. 698. 1930 ["Campylocarpum"].

Shrubs; young shoots glabrous or glandular-hairy. Leaf blade leathery, elliptic, ovate to suborbicular; base shallowly cordate or rounded, apex obtuse, with small cusp; both surfaces glabrous. Inflorescences sparse, 5–15-flowered. Calyx large or small; corolla funnelform-campanulate, broadly campanulate, cup-shaped or saucer-shaped, 5-lobed, yellow, pinkish or white, without nectar pouches; stamens 10; ovary densely glandular; style glandular or glabrous. Capsule slender and long, curved.

Six species: Bhutan, China, India, Myanmar, Nepal, Sikkim; six species (four endemic) in China.

1 Corolla cup- or saucer-shaped; style glandular to tip. (2)

+ Corolla broadly campanulate or funnelform-campanulate; style without glands or with glands only at base. (3)

2 (1) Corolla cup-shaped, bright yellow or pure white, 4–5 cm wide; petiole glabrous. 260 Rhododendron wardii

+ Corolla bowl- or saucer-shaped, white or pinkish, 5–6 cm wide; petiole glandular when young. 261 Rhododendron souliei

3 (1) Calyx 5–10 mm; corolla 4–4.5 cm; petiole 3–4 cm. 262 Rhododendron longicalyx

+ Calyx 1–3 mm; corolla 2.5–3 cm; petiole 1–2.5 cm. (4)

4 (3) Inflorescence 12–13-flowered, rachis 10–15 mm, hairy. 263 Rhododendron henanense

+ Inflorescence 5–7-flowered, rachis 2–7 mm, without hairs, sometimes glandular. (5)

5 (4) Leaf blade broadly ovate or suborbicular; corolla white or pink; ovary 10–15 mm. 258 Rhododendron callimorphum

+ Leaf blade elliptic or oblong-elliptic; corolla clear yellow; ovary 5–7 mm. 259 Rhododendron campylocarpum

Lower Taxa