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
Digitalis 毛地黃屬
作者
LIU, Ho-Yih
型態特徵
Perennial herbs; stems erect, simple. Leaves alternate, entire or shallowly incised. Flowers in terminal unilateral racemes, bracteate; calyx campanulate, cleft nearly to base, lobes 5, unequal, ebracteolate; corolla campanulate, purple, yellow or white, often spotted or striate inside tube, lobes 5, bilabiate, the upper 2 lobes innermost in bud; stamens 4, included, didynamous, anthers distinct, 2-celled, cells parallel; style simple, stigma bilobed, slightly broader than style apex. Capsule enclosed by calyx, beaked, septicidally dehiscent valves 2. Seeds with testae reticulate.
