Sphenocleaceae
密穗桔梗科
特徵描述
作者
LAMMERS, Thomas G.
型態特徵
Annual herbs; stems erect, hollow. Leaves alternate, simple, exstipulate. Flowers perfect, sessile, each subtended by a bract and 2 bracteoles, in dense many-flowered terminal spikes; calyx adnate to ovary, forming a hypanthium, 5-lobed; corolla sympetalous, regular, imbricate; stamens 5, alternate with corolla lobes; filaments distinct, epipetalous; anthers distinct; ovary inferior and adnate to hypanthium, 2-(3-)celled, placentation axile; style solitary, glabrous; stigma capitate. Fruit circumscissile capsule; seeds minute, numerous.
屬
A single genus, previously assigned to Campanulaceae but best segregated in its own family.
參考文獻
- Cronquist, A. 1981. Columbia University Press, New York.
- Cosner, M. E., R. K. Jansen and T. G. Lammers. 1994. Pl. Syst. Evol. 190: 79-95.
- Gustafsson, M. H. G. and K. Bremer. 1995. American Journal of Botany 82: 250-265. (Amer. J. Bot.)
- LAMMERS, Thomas G. 1998. Flora of Taiwan, second edition 4: 801. (Fl. Taiwan 2nd edit.)
Sphenoclea 尖瓣花屬
作者
LAMMERS, Thomas G.
型態特徵
Annual herbs; stems erect, hollow. Leaves alternate, simple, exstipulate. Flowers perfect, sessile, each subtended by a bract and 2 bracteoles, in dense many-flowered terminal spikes; calyx adnate to ovary, forming a hypanthium, 5-lobed; corolla sympetalous, regular, imbricate; stamens 5, alternate with corolla lobes; filaments distinct, epipetalous; anthers distinct; ovary inferior and adnate to hypanthium, 2-(3-)celled, placentation axile; style solitary, glabrous; stigma capitate. Fruit circumscissile capsule; seeds minute, numerous.
Two species, one pantropical, the other endemic to western Africa.
