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

2. Sauropus trinervius J. D. Hooker & Thomson ex Müller Argoviensis, Linnaea. 32: 72. 1863.

三脉守宫木 san mai shou gong mu

Aalius trinervia (J. D. Hooker & Thomson ex Müller Argoviensis) Kuntze.

Erect shrubs to 4 m tall, monoecious, glabrous except for glandular-pubescent branches; branches angular. Stipules lanceolate, 5-8 mm; petiole ca. 3 mm; leaf blade ovate or ovate-lanceolate, 4-12.5 × 2-3.5 cm, base obtuse or rounded, apex acute; basal veins 3, lateral veins 4-6 pairs, slender. Inflorescence axillary. Male flowers in racemes on short peduncles, with minute bracts; pedicels slender, 7-10 mm; calyx enlarging, ca. 5 mm in diam., 6-lobed to middle; sepals ovate-triangular, ca. 4 mm, reflexed; disk segments 6, biseriate, outer shorter and wider than inner, apex obtuse; stamens 3; filaments connate into a cylinder. Female flowers solitary, axillary; pedicel ca. 7 mm; calyx 4-6 mm in diam., 6-lobed; sepals 6, biseriate, usually unequal, obovate, outer 2 × as long as inner; ovary oblong- ovoid, apex truncate; styles short. Fruiting pedicel absent; capsule globose, ca. 2.5 cm in diam., exocarp thinly crustaceous stellate, 6-valved, cocci with a large adaxial hollow. Fl. May-Sep, fr. Aug-Nov.

Open forested slopes or valley scrub; 1000-1300 m. Yunnan (Huize, Kaiyuan) [Bangladesh, India].

The epithet was based on the not validly published name "Phyllanthus trinervius" (Wallich, Numer. List, no. 7922. 1847).


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