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FOC | Family List | FOC Vol. 11 | Euphorbiaceae | Blachia

3. Blachia siamensis Gagnepain, Bull. Soc. Bot. France. 71: 620. 1924.

海南留萼木 hai nan liu e mu

Blachia chunii P. T. Li; B. jatrophifolia Pax & K. Hoffmann var. siamensis Craib.

Shrubs 1-2 m tall; young branches pubescent, glabrescent, sometimes with corky angles. Petiole 2-6 mm; leaf blade obovate-elliptic, 2-5.5 × 1.5-3.5 cm, papery, gray-brown when dry, both surfaces glabrous, base broadly cuneate, rarely rounded, margin entire, prominently revolute, apex rounded, rarely retuse; lateral veins 3-5, divaricate near margin. Male inflorescence terminal, ca. 5 cm, 4-6-flowered; female inflorescence terminal or subterminal, 1-5-flowered. Male flowers white; pedicels slender, 10-15 mm; sepals 5, subovate, sparsely pubescent at apex; petals 5, obtriangular, ca. 0.7 mm; disk glands 5; stamens ca. 20; filaments free; anthers rounded. Female flowers: pedicels ca. 5 mm, sparsely pubescent; sepals 5, ovate-triangular, ca. 1.5 mm, pilose inside; disk glands 5; ovary sparsely villous to glabrous; styles 3, connate at base, bifid at apex, lobes linear. Capsule subglobose, ca. 8 mm in diam., glabrous. Seeds elliptic, ca. 5 × 2.5 mm, dark brown, with stripes of gray-brown spots. Fl. Jun-Jul, fr. Aug-Sep.

Open coastal woodlands; 100-200 m. Guangdong (cultivated), S Hainan (Sanya) [Thailand].


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