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
Pavetta 茜木屬
作者
YANG, T.Y.Aleck
型態特徵
Shrubs or small trees, branches terete. Leaves opposite, rarely in 3-whorled; stipules united into an interpetiolar sheath. Flowers in terminal trichotomously branched cymes, 2-bracteolate; clayx-tube ovoid, the limb 4-toothed, persistent; corolla with a long slender tube, limb 4-lobed, lobes spreading, twisted in bud; stamens 4, inserted on the mouth of the corolla, filiments short, anthers slender; style filiform, twiced as long as the corolla-tube, stigma entire, very slender, more so than the style, ovary 2-celled; ovule 1, attached to a promintent placenta. Fruit a globose berry or didymous with 2 pyrenes. Seeds peltate.
