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Lauraceae

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特徵描述

作者

LlAO, JIH CHING

型態特徵

Evergreen rarely deciduous trees, shrubs or vines, often aromatic. Leaves alternate, rarely opposite, simple, usually coriaceous, sometimes membranaceous, punctate, exstipulate. Inflorescences various, such as umbels, racemes, panicles or cymose-panicles; flowers actinomorphic, bisexual or unisexual, yellow or greenish; calyx usually 6-parted, the segments in 2 whorls; petals 0; stamens in 3-4, rarely more, whorls of 3, some often reduced to staminodia, perigynous or epigynous, anthers 2- or 4-celled, rarely 3-celled, opening by uplifting valves; ovary usually superior and free, rarely inferior, 1-celled, 1-ovuled, style filiform. Fruits berries or drupes, indhiscent; seed 1.

Widely distributed in the tropics, especially in S. E. Asia and Brazil, and a smaller number in temperate regions. About 45 genera and 2,250 species; about 20 genera, 423 species, 43 varieties and 5 forms in mainland China; 13 genera, 60 species, 12 varieties and 2 forms in Taiwan (including 9 species and 1 variety introduced); a few genera are cultivated as ornamentals and for food. The avocado, cinnamon and camphor are articles of commerce.

參考文獻

Cryptocarya 厚殼桂屬

作者

LlAO, JIH CHING

型態特徵

Trees or shrubs, evergreen. Leaves alternate or rarely subopposite, with parallel 3 main veins or pinnate veins. Flowers small, bisexual, in axillary and subterminal panicles; tepals 6, subequal; fertile stamens 9, 1st and 2nd whorles of stamens eglandular, anthers introrse, 2-celled, 3rd whorl with 2 glands, anthers 2-celled, extrorse, 4th whorl staminodia, cordate, short stipitate; ovary sessile, style short exserted, stigma obtuse or disc-shaped. Fruit oblong or compressed-globose, wholly enclosed in enlarged perianth.

參考文獻

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學名 中名 標本數