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
Dopatrium 虻眼草屬
作者
LIU, Ho-Yih
型態特徵
Annual herbs, erect, glabrous, branched. Leaves opposite, somewhat fleshy, entire, widely spaced above. Flowers solitary, axillary, or in terminal lax racemes; calyx 5 parted, cleft to beyond middle, ebracteolate; corolla blue or purple, tubular, lobes 5, bilabiate, upper lobes 2 smaller, outermost in bud; stamens 2, posterior, included, anthers confluent, 2-celled, cells separate; staminodes 2, anterior, minute, clavate; style simple, stigma bilobed. Capsule loculicidally dehiscent, valves 2. Testa of seeds tuberculate.
