特徵描述
作者
LI, HUI-LIN and HSIEH, CHANG-FU
型態特徵
Deciduous or evergreen shrubs or trees, often with stellate pubescence. Leaves alternate, rarely opposite, simple or palmately lobed, the teeth often glandular; stipules often 1–2, usually persistent, sometimes large, rarely wanting. Flowers bisexual, polygamous or monoecious, regular or irregular, small, perigynous or epigynous. Calyx-tube adnate to the ovary, the lobes 4–5, rarely 6–7, imbricate, rarely valvate. Petals 4–5, or wanting, usually valvate, rarely imbricate or circinate. Stamens 4–5, or sometimes more, perigynous, 1-seriate, the filaments free; anthers 2-celled, the connectives often produced. Ovary inferior, half-inferior, or rarely superior, 2-celled; styles subulate, free, often recurved, usually persistent; ovules 1 or several in each cell, anatropous, pendulous. Fruit a woody, 2-valved, 2-celled capsule; exocarp coriaceous; endocarp horny. Seeds often winged, albuminous, the testa black, horny; embryo erect.
屬
About 23 genera with 150 species, chiefly in subtropical and warm temperate regions of both hemispheres, six genera in Taiwan.
參考文獻
Eustigma 秀柱花屬
作者
LI, HUI-LIN and HSIEH, CHANG-FU
型態特徵
Small trees. Leaves alternate, coriaceous, persistent, shining; stipules small, caducous. Flowers bisexual, small, in few-flowered, axillary, capitate racemes, 3-bracteate; calyx-tube adnate to the ovary, the limb 5-parted, the lobes imbricate; petals 5, scale-like, 2-lobed; stamens 5, persistent, the filaments short, the anthers obtuse, the cells dehiscing vertically; ovary half-inferior, distinctly papillose, ovule 1 in each cell. Capsule woody, 2-valved, the valves 2-fid; endocarp horny. Seeds ellipsoid, the testa crustaceous, shining.
