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

2. Trigonostemon flavidus Gagnepain, Bull. Soc. Bot. France. 69: 749. 1923.

异叶三宝木 yi ye san bao mu

Trigonostemon heterophyllus Merrill.

Shrubs 1-2 m tall; branchlets densely yellow-brown hirsute; older branches scabrous, glabrescent. Leaves densely clustered in apparent whorls; petiole 3-6 mm, densely yellow-brown hirsute; leaf blade oblanceolate to oblong-oblanceolate, 12-35 × 4-10 cm, membranous to papery, densely hairy, basally attenuate into auriculate or subcordate base, margin entire or obscurely serrulate beyond middle, ciliate, apex shortly acumi nate, acumen caudate. Male flowers: inflorescences axillary, racemelike, ca. 2.5 cm, few flowered; bracts 4 or 5, linear- lanceolate, slightly falcate, 1-2 cm; sepals 5, hirsute, 3 larger, 2.5-3 mm, 2 smaller, ca. 1.5 mm; petals obovate-elliptic, ca. 4.5 mm, purple-red; disk glands 5, ca. 0.8 mm; stamens 3; filaments connate. Female flowers axillary, solitary; pedicels short, or sometimes inserted in upper part of to 6 cm inflorescences; sepals lanceolate, ca. 5 mm, hirsute, apex long ciliate, acuminate; petals elliptic or obovate, 4.5-5 × ca. 4 mm; disk glands 5, oblong; ovary densely hairy; styles bifid. Fruiting peduncles 1-8 cm; persistent sepals and bracts lanceolate, ca. 2 cm. Capsules subglobose, ca. 6 mm in diam., chestnut brown, with stripes of yellow spots. Fl. May-Oct, fr. Aug-Dec.

Dense forests; ca. 300 m. Hainan [Laos, Myanmar, Thailand].


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