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

3. Macaranga denticulata (Blume) Müller Argoviensis in A. Candolle, Prodr. 15(2): 1000. 1866.

中平树 zhong ping shu

Mappa denticulata Blume, Bijdr. 625. 1826; Macaranga chatiniana (Baillon) Müller Argoviensis; M. denticulata var. zollingeri Müller Argoviensis; M. gummiflua (Miquel) Müller Argoviensis; M. henricorum Hemsley; M. perakensis J. D. Hooker; Mappa chatiniana Baillon ["chantiniana"]; M. gum miflua Miquel; M. truncata Müller Argoviensis; M. wallichii Baillon; Rottlera glauca Hasskarl.

Small trees 3-15 m tall. Branchlets ferruginous or yellowish brown tomentose when young; branches glabrous, sometimes glaucous. Stipules lanceolate, 7-8 mm, tomentose, caducous; petiole 5-20 cm; leaf blade deltoid-ovate or broadly ovate, 12-30 × 11-28 cm, thinly leathery or thickly papery, abaxially pubescent, densely glandular scaly, adaxially glabrescent, base obtuse or subtruncate, narrowly peltate, rarely subcordate, with 2 or 4 glands, margin repand or subentire, apex cuspidate-acuminate, palmately 7-9-veined. Male inflorescences branched, 5-10 cm, tomentose; bracts suboblong, 2-3 mm, margin 2-4-glandular, or triangular, ca. 1 mm. Male flowers 3-7 per bract; pedicel ca. 0.5 mm; calyx 2- or 3-lobed, ca. 1 mm; stamens 9-16(-21). Female inflorescence branched, 4-8 cm, tomentose; bracts oblong or ovate, leaflike, 5-7 mm, margin 2-6-glandular, or triangular. Female flower solitary; calyx cup-shaped, 2-lobed, ca. 1.5 mm; ovary 2(or 3)-locular, puberulent; styles 2(or 3), ca. 1 mm. Fruiting pedicel 3-5 mm; capsule 2-lobed, 5-6 mm in diam., densely glandular-scaly; persistent calyx 3- or 4-lobed. Fl. Apr-Jun, fr. May-Oct.

Low hills, slopes, forests, secondary forests; below 100-1300 m. Guangxi, S Guizhou, Hainan, SE Xizang (Mêdog), S and SE Yunnan [Bhutan, NE India, Indonesia, Laos, Malaysia, Myanmar, Nepal, Thailand, Vietnam].


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