荔波杜鹃 li bo du juan

Small trees, 2–5 m tall; branchlets robust, glabrous. Petiole 1.7–2 cm, glabrous; leaf blade leathery, elliptic-lanceolate, 10–15 × 1.6–2.8 cm; base cuneate; apex acute; abaxial surface pale green, glabrous; adaxial surface green, glabrous, midrib prominent abaxially, grooved adaxially; lateral veins 11–14-paired. Inflorescence a terminal corymb, 7–9-flowered; rachis 10–30 mm, glabrous. Pedicel 2.1–3.7 cm, glabrous; calyx small, glandular-hairy; corolla broadly campanulate, pink, 3.7–5.5 × ca. 8 cm, outer surface glabrous or with a few glandular hairs; stamens 15, unequal, 2–4 cm, filaments pilose at base; ovary 4–5 mm, with dense white-pilose glands; style 4–4.5 cm, glabrous or with a few long glandular hairs; stigma capitate. Capsule cylindrical-ellipsoid, 22–30 × ca. 15 mm, densely glandular. Fl. Mar–Apr, fr. Dec.

Karstic hill summits; 600–700 m. SE Guizhou (Libo).

The present authors have seen no material of this species. It was compared by the original authors with Rhododendron huanum, but was distinguished by its narrower leaves, shorter calyx, and larger corolla.