THE GENERA OF RUBIACEAE IN THE SOUTHEASTERN UNITED STATES, PART II.SUBFAMILY RUBIOIDEAE, AND SUBFAMILY CINCHONOIDEAE REVISITED (CHIOCOCCA, ERITHALIS, AND GUETTARDA)

摘要

Herbs, vines, shrubs, and trees with opposite 01 whorled leaves or with whorled foliar organs generally interpreted as leaves and leaflike stipules. Stipules usually interpetiolar centered between the petioles of the opposite or whorled leaves, often deltate, sometimes bifid or multifimbriate apically, often provided with adaxial or marginal colleters Flowers perfect, usually actinomorphic, sometimes heterostylous, usually pen tamer ous, often tetramerous, or infrequently trimerous, solitary, paired, or numerous in usually cymose or thyrsoid, sometimes capitate, inflorescencesCorollas tubular, often funnelform Stamens usually as many as the corolla lobes and alternating with them, usually inserted on the corolla tube sometimes at the base, occasionally on a disk; pollen usually triaperturate, or with up to 13 apertures. Ovaries inferior or sometimes partly superior, usually bilocular but sometimes plurilocular [rarely unilocular], with 1-many ovules per locule. Fruits often drupaceous, or dry梩hen dehiscent, partly dehiscent, or indehiscent. Seeds typically with nuclearendosperm or endosperm absent, TYPE GENUS: Rubia L,.