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Aucubaceae

Aucubaceae Bercht. & J. Presl, Přir. Rostlin 2: 91 (1825) (Aucubeae).
  • Q.-Y. XiangEmail author
Chapter
Part of the The Families and Genera of Vascular Plants book series (FAMILIES GENERA, volume 14)

Abstract

Small evergreen trees or shrubs; branchlets opposite, with conspicuous leaf scars, often pubescent when young, sometimes pendulous with aerial roots; plants dioecious. Leaves simple, pinnately veined, opposite, without stipules, stoutly petiolate; blade thick leathery to thick chartaceous, dark green and shiny above, light green below, sometimes variegated, pubescent or glabrous; margin serrate or glandular serrate, rarely entire. Flowers small, unisexual, epigynous, actinomorphic. Both male and female flowers arranged in terminal thyrsoid compound inflorescences; female inflorescences usually smaller than male ones. Male flowers subtended by one small, lanceolate and pubescent bracteole; calyx minute, 4-dentate; petals 4, appearing free, valvate in bud, oblong or ovate, 3–4 mm long, purple red to yellow or greenish, floral disk fleshy, slightly 4-lobed; stamens 4, alternating with petals; filaments conical, short; anthers yellow, dorsifixed, bithecate , rarely unithecate, dehiscing with longitudinal slits; female flowers similar to male ones but pedicel articulate at the base of the ovary and subtended by one or two lanceolate bracteoles; style simple, short and thick; stigma capitate, straight or bent to one side, slightly 2–4-lobed; ovary unicarpellate, cylindric or ovoid, inferior, 1-locular; ovule 1, pendant, anatropous with dorsal raphe, unitegmic, crassinucellate. Fruit a fleshy 1-seeded drupe, cylindric or ovate, red when mature, black when dry, crowned by persistent calyx teeth, style, and stigma. Endosperm copious; embryo minute.

Keywords

Female Flower Display Size Aerial Root Female Inflorescence Petroselinic Acid 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer International Publishing Switzerland 2016

Authors and Affiliations

  1. 1.Department of Plant and Microbial BiologyNorth Carolina State UniversityRaleighUSA

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