特徵描述
作者
LIU, Ho-Yih
型態特徵
Herbs or shrubs, rarely trees or vines; some species hemiparasitic or parasitic. Leaves opposite or alternate, rarely whorled; exstipulate. Flowers in racemes, spikes, or thyrsoid panicles or solitary; perfect, usually irregular. Calyx lobes 5 or 4, rarely 1 or 2 by fusion. Corolla sympetalous, 4 or 5-lobed, often 2-lipped. Stamens epipetalous, usually 4 and didynamous, or 4 fertile and 1 sterile, rarely 2 or 5; anthers 1 or 2-celled, cells distinct or more or less confluent. Disc annular or cup-shaped. Ovary superior, 2-celled; style simple or sometimes forked; stigma capitate, dilated, or 2-lobed. Fruit a capsule, rarely baccate. Seeds small, hilum lateral or ventral.
屬
About 220 genera, worldwide; 25 genera in Taiwan.
參考文獻
Siphonostegia 陰行草屬
作者
LIU, Ho-Yih
型態特徵
Hemiparasitic annual or perennial herbs; stems erect, simple or branched, often pubescent. Leaves opposite or upper ones alternate, entire, pinnatifid to bipinnatifid. Flowers solitary in upper leaf axils; calyx tubular, 10-ribbed, 5-lobed, 2-bracteolate; corolla yellow or red, tubular, bilabiate, the upper lip galeate (hooded), inner in bud, throat with 2 palates; stamens 4, didynamous, inside galea; anthers confluent, 2-celled, cells parallel; style simple, stigma capitate. Capsule completely enclosed by persistent calyx, loculicidally dehiscent, valves 2. Testa of seeds reticulate.
