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

27. Mallotus paniculatus (Lamarck) Müller Argoviensis, Linnaea. 34: 189. 1865.

白楸 bai qiu

Croton paniculatus Lamarck, Encycl. 2: 207. 1786; Echinus trisulcus Loureiro; Mallotus chinensis Müller Argoviensis; M. cochinchinensis Loureiro; M. formosanus Hayata; M. paniculatus var. formosanus (Hayata) Hurusawa; Rottlera paniculata (Lamarck) A. Jussieu.

Shrubs or trees, 3-15 m tall. Branchlets reddish stellate-tomentulose. Stipules small; petiole 2-15 cm; leaf blade rhombic, ovate, or triangular-ovate, often 1-3-lobed or 3-cuspidate, 5-15 × 3-12 cm, thickly papery, adaxially glabrescent, abaxially grayish tomentulose, base cuneate, sometimes slightly peltate, with 2 large basal glands, apex acuminate; basal veins 3-5. Male and female inflorescences often branched, 10-25 cm, tomentulose; bracts ovate, 1-2 mm. Male flowers 2-7-fascicled; pedicel 2-3 mm; calyx lobes 3 or 4, ovate, 2-2.5 mm, stellate-puberulent; stamens 50-60. Female flowers: sepals 4 or 5, oblong, 2-3 mm, tomentulose; ovary tomentulose; styles 3, ca. 3 mm, plumose. Fruiting pedicel ca. 2.5 mm; capsule 3-locular, ca. 10 mm in diam., tomentulose, sparsely softly spiny, spines subulate, 4-5 mm. Seeds subglobose, ca. 4 mm in diam., blackish, verruculose or smooth. Fl. Jul-Oct, fr. Oct-Dec.

Mountain slopes, thickets, secondary forests; below 100-1300 m. S Fujian, Guangdong, Guangxi, Guizhou, Hainan, Taiwan, Yunnan [Bangladesh, Cambodia, India, Indonesia, Laos, Malaysia, Myanmar, Papua New Guinea, Philippines, Thailand, Vietnam; NE Australia].


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