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  • (Buchanan-Hamilton)

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    文档作者:89年北市國中校務行政
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    Fl. China 11: 125–129. 2008.
    14. DYSOXYLUM Blume, Bijdr. 172. 1825.
    木属 jian mu shu Peng Hua (彭华); David J. Mabberley Trees or very rarely shrubs, usually dioecious. Leaves in spirals or rarely opposite, pinnate; leaflets alternate, subopposite, or alternate, petiolulate, not always an equal number on each side of rachis; leaflet blade base usually oblique, margin usually entire, very rarely serrulate. Flowers appearing bisexual, 4- or 5-merous, in axillary thyrses, rarely spikes, sometimes borne on older branches or bole. Calyx cup-shaped, 4- or 5-lobed or of 4 or 5 free sepals. Petals 4 or 5, oblong, valvate or apex ± imbricate in bud, free or sometimes basally adnate to staminal tube. Staminal tube cylindric, slightly shorter than petals, apex often laciniate or crenate; anthers 8–10, included in apex of filament tube. Disk tubular, as high or higher than ovary (rarely shorter), margin entire or crenate. Ovary (3 or)4- or 5-locular, with 1 or 2 ovules per locule; style ± as long as filament tube; stigma usually disciform. Capsule globose or pyriform, splitting into (3 or)4 or 5 segments, with 1 or 2 seeds per valve. Seeds arillate or not; hilum often large; cotyledons fleshy.
    About 80 species: tropical Asia, tropical and subtropical Australia, Pacific islands; 11 species (one endemic) in China, with two insufficiently known species (not included in the key).

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