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

523. Rhododendron meridionale P. C. Tam, Guihaia. 2: 71. 1982 [“meridionalis”].

南边杜鹃 nan bian du juan

Erect shrubs, ca. 3 m tall; branchlets slender, coarsely ferruginous strigose at first, later glabrescent. Summer and winter leaves different. Petiole 3–5 mm, densely dark brown strigose; leaf blade papery, lanceolate or narrowly lanceolate, 1.5–4 (–7.5) × 0.5–1.5 cm; base narrowly cuneate; margin revolute, undulate; apex shortly caudate-acuminate; midrib slightly impressed adaxially, lateral veins 5–6-paired, slightly impressed, not reaching the margin. Inflorescence 3–6-flowered. Pedicel 1.3–1.5 cm, densely coarsely long yellowish brown strigose; calyx lobes obscure, coarsely ferruginous setose-strigose; corolla broadly funnelform, purple or purple-red, without purple flecks, 2.8–3.1 cm; tube cylindric, 9–11 × ca. 4 mm, glabrous; lobes spreading, oblong-lanceolate, 1.6–2 × ca. 0.8 cm; stamens 5, subequal, ca. 3.5 cm, exserted, filaments glabrous; ovary ovoid, ca. 3 mm, densely coarsely yellow-brown setose-strigose; style ca. 3.5 cm, as long as stamens, glabrous. Capsules ovoid, ca. 7 mm, coarsely gray-brown-strigose. Fl. Mar–Apr, fr. Oct–Nov.

Valley forests, open forests, ravines; 500–1300 m. N and S Guangxi.


1 Blade of spring leaves to 2 × 0.2–0.4 cm, margin strongly revolute, lateral veins obscure abaxially; style glabrous.   523c var. minus
+ Blade of spring leaves 5–7.5 × 0.5–1.3 cm, margin not strongly revolute, lateral veins prominent abaxially; style glabrous or hairy at base.   (2)
       
2 (1) Style completely glabrous.   523a var. meridionale
+ Style coarsely brown setose-strigose at base.   523b var. setistylum

Lower Taxa


 

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