Hydrangeaceae
八仙花科
特徵描述
[ Saxifragaceae 虎耳草科 ]
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.
屬
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.
A genus with about 25 species distributed in eastern to southern Asia and Malaysia in the Old World and from eastern North America southward along the mountains of Central America into the Andes of South America in the New World. Seven species in Taiwan.
參考文獻
種列表
- Hydrangea acuminata
- Hydrangea americana
- Hydrangea angustipetala 狹瓣八仙花
- Hydrangea anomala 藤繡球
- Hydrangea arborescens 喬木繡球
- Hydrangea aspera 高山藤繡球
- Hydrangea bretschneideri 東陵繡球
- Hydrangea chinensis 華八仙
- Hydrangea cuspidata 圓八仙花
- Hydrangea densifolia 台灣草紫陽花
- Hydrangea fauriei 圓葉鑽地風
- Hydrangea hirta
- Hydrangea integrifolia 大枝掛繡球
- Hydrangea longifolia 長葉繡球
- Hydrangea longipes 蓴蘭繡球
- Hydrangea macrophylla 繡球花
- Hydrangea opuloides var. acuminata
- Hydrangea paniculata 水亞木
- Hydrangea petiolaris var. ovalifolia 藤本八仙花
- Hydrangea scandens 小葉八仙花
- Hydrangea sikokiana
- Hydrangea sp.
- Hydrangea strigosa 蠟蓮繡球
- Hydrangea taiwaniana 台灣大枝掛繡球
- Hydrangea umbellata 中國繡球
- Hydrangea viburnoides 青棉花
- Hydrangea virens
