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3. Macadamia F. Mueller, Trans. & Proc. Philos. Inst. Victoria. 2: 72. 1857.
澳洲坚果属 ao zhou jian guo shu
Trees or tall shrubs. Leaves whorled, margin entire or spiny serrate. Inflorescences axillary or sometimes terminal, a raceme or rarely a panicle of flower pairs; bracts of flower pairs early caducous; floral bracts absent. Flower bisexual. Pedicels free. Perianth tube slightly curved; limb segments clavate, free, recurved at anthesis. Stamens inserted slightly below limb; anthers oblong; connective produced into an appendage. Hypogynous glands connate into a cup or ring. Ovary sessile; ovules 2, orthotropous. Style straight or bent, apex clavate; stigma terminal, small. Fruit tardily dehiscent; pericarp thick, hard, leathery. Seed 1 and globose or rarely 2 and hemispheric; cotyledons fleshy.
About nine species: Australia and Indonesia (Sulawesi); two species (introduced) in China.
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1 |
Leaves in whorls of 3, margin irregularly spiny toothed or entire; petiole 4-18 mm; inflorescence sparingly puberulous; testa smooth. |
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1 M. integrifolia |
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Leaves in whorls of (3-)4(-5), margin regularly spiny toothed; leaf subsessile or with petiole to 4 mm; inflorescence pubescent; testa wrinkled or with shallow depressions. |
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2 M. tetraphylla |
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Lower Taxa
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Treatments in Other Floras @ www.efloras.org
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