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

海漆属 hai qi shu

Authors: Bingtao Li & Hans-Joachim (Hajo) Esser

Excoecaria acerifolia var. cuspidata

Credit: Harvard University Herbaria

Commia Loureiro.

Trees or shrubs, with milky juice, glabrous. Leaves alternate or opposite, petiolate; stipules small, caducous; leaf blade entire or serrulate, penninerved. Flowers unisexual (plants monoecious or dioecious), apetalous, without disk, in axillary or terminal racemelike thyrses. Male flowers (sub)sessile; sepals 3, small, imbricate, free; stamens 3; filaments free; anthers longitudinally dehiscent, without pistillode. Female flowers sessile to pedicellate; calyx 3-lobed or 3-partite; ovary 3-celled, smooth; ovules 1 per locule; stigmas extended or recurved, free to slightly connate at base, undivided, eglandular. Capsules dehiscent into 2-valved cocci; columella persistent, winged. Seeds globose, estrophiolate; episperm crustaceous; endosperm fleshy; cotyledon broad and flattened.

About 35 species: Africa, Asia, Australia, Pacific islands; five species (two endemic) in China.

1 Leaves opposite above, alternate on lower parts   (2)
+ Leaves alternate on all parts   (4)
2 (1) Leaf blade purple or dark red abaxially   1 E. cochinchinensis
+ Leaf blade green or greenish abaxially when old   (3)
3 (2) Leaf blade ca. 3 × as long as wide, apex acuminate, not falcate, petiole 3-13 mm.   1 E. cochinchinensis
+ Leaf blade more than 5 × as long as wide, apex acuminate-falcate, petiole 3-5 mm.   2 E. venenata
4 (1) Leaf blade serrulate; male bracts 2- or 3-flowered.   5 E. acerifolia
+ Leaf blade entire or nearly so; male bracts 1-flowered   (5)
5 (4) Petioles 2-glandular at apex; plants dioecious.   3 E. agallocha
+ Petioles not glandular at apex; plants monoecious.   4 E. kawakamii

Lower Taxa


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