找植物
找標本
電子書

Rutaceae

芸香科

特徵描述
屬列表
標本列表

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.

About 140 genera with 1,300 species, tropical and temperate; 13 genera in Taiwan.

參考文獻

Toddalia 飛龍掌血屬

作者

CHANG, CHING-EN and HARTLEY, TOMG

型態特徵

Usually subscandent or sarmentose prickly shrubs. Leaves alternate, 1–3-foliolate; leaflets sessile. Flowers small, in axillary or terminal cymes or panicles, unisexual; calyx short, 2–5-lobed or parted; petals 2–5, imbricate or valvate; stamens 2, 4, 5 (or 8, with the alternate ones imperfect), reduced or 0 in the female flower, inserted at the base of a short or long or inconspicuous disc; ovary ovoid-oblong or globose, rudimentary or 4-lobed in the male flowers, 2–7-celled; style short or 0, the stigmas capitate; ovules 2, superposed in each cell. Fruit subglobose or lobed, coriaceous or fleshy, 2–7-celled, the cells 1-or rarely 2-seeded; seeds angled, reniform, the testa coriaceous; endosperm fleshy; embryo curved.

參考文獻

標本列表

學名 中名 標本數