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

3. Excoecaria agallocha Linnaeus, Syst. Nat., ed. 10. 2: 1288. 1759.

海漆 hai qi

Commia cochinchinensis Loureiro.

Trees deciduous, up to 15 m tall; branches lenticellate, glabrous. Leaves alternate throughout; stipules ovate, 1.5-2 mm; petiole 1.5-3 cm; leaf blade elliptic or broadly elliptic, rarely ovate-oblong, 4.5-10 × 3-5 cm, subleathery, base obtuse or broadly cuneate, margin entire or indistinctly serrulate, with 2 distinct glands at base near junction with petiole, apex obtusely acuminate; midvein stout, concave adaxially, convex abaxially, lateral veins 10-13, arcuately ascending steeply and running close to edge some distance before terminating. Flowers dioecious, in axillary, solitary or double racemelike thyrses; male inflorescences 3-4.5 cm, dense and catkinlike, female ones shorter. Male flowers 1 per bract; bracts broadly ovate, fleshy, ca. 2 × 2 mm, base inside 2-glandular, branchlets lanceolate; sepals linear-acuminate, ca. 1.2 mm; stamens usually exceeding sepals. Female flowers: bracts and bracteoles as in male; pedicels slightly longer than male ones (elongating to 5 mm in fruit); sepals broadly ovate or triangular, slightly connate at base, ca. 1.4 × 1 mm; ovary ovoid; stigmas, ca. 3 mm, free, revolute at apex. Capsules globose, trisulcate, 7-8 × ca. 10 mm; cocci ovoid, rostrate at apex. Seeds globose, ca. 4 mm in diam. Fl. and fr. Jan-Sep. 2n = 140.

Mangrove and tidal forests, brackish areas and rice fields; sea level to 100 m. Guangdong, Guangxi, Hainan, Taiwan [Cambodia, India, Indonesia, Japan (Ryukyu Islands), Malaysia, Papua New Guinea, Philippines, Sri Lanka, Thailand, Vietnam; Australia, Pacific islands].

This species is cultivated for ornamental purposes.


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