Cardiandra 草紫陽花屬
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
Cardiandra 草紫陽花屬
作者
KAO, MUH-TSUE
型態特徵
Suffruticose herbs. Leaves alternate, deeply serrate, estipulate. Flowers small, laxly corymbose, the outer ones sterile with the calyx-limb enlarged into 2–3 petaloid lobes; calyx-tubes adnate the ovary, globose, the lobes 4–5, valvate; petals 5, valvate; stamens numerous, the filaments filiform; anthers obcordate, basifixed, the connectives often dilated; ovary inferior, incompletely 3-celled; styles 3, shortly subconical, the stigmas ovate; ovules numerous, attached to the placenta, inflexed. Capsules ovoid, longitudinally dehiscent above, many-seeded; seeds small, oblong, compressed, the testa reticulate, produced into wings at both ends; embryo small.
A small genus of our or five species in eastern Asia, one in Taiwan.
