特徵描述
作者
LIU, Ho-Yih, YANG, T. Y. Aleck, LI, Sung-Po and LI, Hen-Jung
型態特徵
Trees, shrubs, lianas, or herbs. Leaves simple, mostly entire, commonly decussately opposite, often with connate interpetiolar stipules, or sometimes whorled, or rarely stipules intrapetiolar. Inflorescence basically cymose, terminal or lateral, rarely solitary flowers. Flowers mostly complete, rarely unisexual, nearly always epigynous, often heterostyle, zoophilous or rarely anemophilous, actinomorphic or rarely zygomorphic, often tetramerous or pentamerous. Calyx adnate to the ovary, aestivation open, lobes minute or obsolete, sometimes one or more enlarged and colored. Corolla sympetalous, salverform, rotate or funnelform. Stamens as many as and alternate corolla lobes, attached within corolla tube or at mouth; anthers dithecal, opening longitudinally. Ovary nearly always inferior, often bicarpellate; style single, terminal; stigma capitate or lobed. Fruit a capsule, berry, drupe, or schizocarp.
屬
About 630 genera, especially abundant in tropical and subtropical regions; 38 genera in Taiwan.
參考文獻
Argostemma 水冠草屬
作者
YANG, T. Y. Aleck
型態特徵
Small herbs. Leaves usually membranaceous; stipules entire, persistent or obsolete. Flowers white, in peduncle-cymes or umbels; calyx-tube short, (3-)5(–7)-lobed; corolla rotate, 4–5-lobed, valvate in bud; stamens 4–5, filaments short, anthers large, free, conniving or cohering, erect or declinate, opening by 1–2 terminal pores, rarely longitudinally dehiscent; styles filiform, stigma capitate, ovary 2-cells; ovules many, on projecting placentas. Capsules coriaceous or membranaceous, 2-celled, dehiscing at the apex or by an operculum. Seeds many, minute, angled.
