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Saxifragaceae

虎耳草科

特徵描述
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特徵描述

作者

KAO, MUH-TSUE

型態特徵

Herbs, shrubs or small trees. Leaves alternate or opposite, usually without stipules; blade simple or compound. Inflorescences basically cymose, sometimes racemose to paniculate. Flowers bisexual or polygamo-dioecious, regular, hypogynous or perigynous; sepals or calyx-lobes 4–5, free or united, imbricate or valvate; petals 4–5, rarely 0, imbricate or valvate; stamens inserted with the petals, equalling or doubling their number; staminodes or glands sometimes present between the stamens and ovary; carpels 2–5, wholly or partly connate, rarely separate; styles as many as the carpels, distinct or connate nearly to the summit, the stigmas capitate or lateral and subcapitate, ovules numerous, erect or pendulous. Fruit a capsule or berry; seeds numerous, small, winged, albuminous; embryo small, the cotyledons flat.

About 80 genera and 1,200 species, widely distributed, chiefly in the cold and temperate regions; 13 genera, 23 species and two varieties in Taiwan.

參考文獻

Hydrangea 八仙花屬

作者

KAO, MUH-TSUE

型態特徵

Large shrubs or trees, sometimes scandent. Leaves opposite, estipulate. Flowers in terminal corymbs or paniculate, with deciduous bracts, all fertile and small or the exterior ones apetalous and with the calyx-tubes greatly enlarged and petaloid; calyx-tubes adnate to the ovary, the limb 4–5-fid; petals 4–5, valvate; stamens 8–10, subepigynous, with filiform filaments and short anthers; ovary inferior, completely or incompletely 4–5-celled; styles 2–4, free or connate at base, the stigmas ovate; ovules very numerous, axillary. Capsules 2–4-celled, dehiscing at the apex between the styles; seeds very numerous, minute, the testa produced into wings at both ends.

參考文獻

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