特徵描述
作者
CHANG, CHING-EN and HARTLEY, TOMG
型態特徵
Trees, shrubs, rarely herbs, with abundant pellucid glands, filled with essential oils. Leaves opposite or alternate, simple or compound, estipulate. Inflorescence various. Flowers usually regular, hermaphroditic or polygamous; sepals 4–5, free or connate; petals 4–5, rarely none, imbricate or valvate; stamens as many or twice as many as the petals, sometimes fewer or more numerous; disc usually annular or cushion-like, between the ovary and stamens; ovary superior, usually deeply lobed, typically 4–5-loculed, the carpels more or less connate, or free, rarely 1-carpellary; ovules solitary or geminate. Fruit various, separating into as many cocci as carpels or baccate. Seeds usually solitary in each cell, the testa various; endosperm fleshy or 0; embryo straight or curved.
屬
About 140 genera with 1,300 species, tropical and temperate; 13 genera in Taiwan.
參考文獻
Acronychia 降真香屬
作者
HARTLEY, TOM G.
型態特徵
Shrubs (rarely scandent) or trees, unarmed. Leaves opposite, digitately 3-foliolate or l-foliolate. Inflorescences thyrsiform or sometimes reduced to single flowers, axillary. Flowers small, bisexual; sepals 4; petals 4, white to cream or yellowish, distinct, valvate, becoming recurved; stamens 8, distinct, retrorsely pilose adaxially, becoming recurved; disc intrastaminal, pulvinate; gynoecium 4- or rarely 4- to 8-carpellate, the carpels connate basally or up to their full length, with a common apical style, the stigma punctiform or capitellate, the ovules 2 per carpel. Fruit of 1–4 basally connate drupes (the abortive carpels, if any, persistent) or grading to syncarpous (the carpels united into a 4-locular drupe). Seeds solitary or in pairs, narrowly ellipsoid to subpyriform; testa smoothish or irregularly sculptured, with rather thin to thick inner layer of dense, black sclerenchyma.
