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FOC | Family List | FOC Vol. 11 | Meliaceae | Dysoxylum

1. Dysoxylum excelsum Blume, Bijdr. 176. 1825.

木 jian mu

Dysoxylum gobara (Buchanan-Hamilton) Merrill; D. procerum Hiern; Epicharis procera (Hiern) Pierre; Guarea gobara Buchanan-Hamilton.

Trees to 13 m tall. Branchlets brown to reddish brown, glabrous; apical buds with leaves like clenched fists. Leaves 40-60 cm, even-pinnate; leaflets usually 7 or 9, alternate; petiolules ca. 1 cm; leaflet blades elliptic to oblong, (9-)25-35 × (5-)8-15 cm, thickly papery to thinly leathery, both surfaces glabrous, not markedly shiny above, secondary veins 11-16 on each side of midvein, abaxially protruding, and adaxially slightly impressed, base ± oblique and cuneate to slightly rounded, apex acute. Thyrses axillary, ± as long as leaves, glabrous or sparsely pubescent; branches spreading, basal ones 20-35 cm. Flowers 7-10 mm. Calyx 4-lobed at first but subsequently 4-parted, outside puberulent. Petals 4, white, linear to narrowly elliptic, 6-10 × 2-3 mm, outside puberulent, inside glabrous. Staminal tube glabrous on both surfaces, apical margin entire or shortly crenate; anthers 8, oblong. Disk cylindric, ca. 2 × as high as ovary, ciliate, outside smooth, inside with inverted trichomes, apex 8-lobed. Ovary conic, 4-locular, with long thick trichomes, with 2 ovules per locule; style several times longer than ovary, basal part with long thick trichomes. Capsule globose to pyriform, ca. 3.5 × 3.5-4 cm, glabrous, apex concave. Seeds with bright red testa. Fl. Sep-Nov, fr. Apr-Jun.

Rain forests in mountainous ravines, evergreen broad-leaved forests, sparse forests; 100-1000 m. SW Guangxi, SE Xizang (Mêdog), S and SE Yunnan [Bhutan, NE India, Indonesia, Laos, Nepal, Papua New Guinea, Philippines, Sri Lanka, Thailand, Vietnam; Pacific islands (Solomon Islands)].


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