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Metteniusaceae (incl. Dendrobangia incert. sed.)

Metteniusaceae Schnizl., Iconogr. Fam. Regni Veg. 2: ad t. 142 (1860–70).Oncothecaceae Kobuski ex Airy Shaw, Kew Bull. 18: 264 (1965).
  • W. C. Dickison
  • V. BittrichEmail author
Chapter
Part of the The Families and Genera of Vascular Plants book series (FAMILIES GENERA, volume 14)

Abstract

Shrub or more commonly small to medium-sized trees with glabrous (Oncotheca) or hairy (Metteniusa), exstipulate, alternate leaves; leaves simple, margin entire or minutely glandular-denticulate. Flowers pentamerous, borne in axillary thyrsoid inflorescences, bisexual, actinomorphic; sepals 5, imbricate, persistent; petals 5, united into sympetalous corolla, lobes imbricate or valvate, glabrous or inside with secretory trichomes; stamens 5, alternate with petals, inserted on corolla tube, filaments short, anthers are dithecate, basically tetrasporangiate becoming polysporangiate by transversal septa (Metteniusa) or dithecate and bisporangiate (Oncotheca) by reduction of the dorsal pollen-sacs, extrorse, opening by longitudinal slits, connectives prolonged or not, when prolonged forming cover on superior ovary; ovary syncarpous, 5-carpellate, 5-locular with apical-axile placentation or unilocular with parietal placentation; ovules 2 per locule, pendant, anatropous, unitegmic; stylodia 5, distinct or connate for most of their length or style simple, filiform. Fruit drupaceous, with hard endocarp, 5-locular or 1-locular, with 1(2) seeds per locule. Seed albuminous, embryo straight or curved.

Keywords

Vessel Element Margin Entire Axial Parenchyma Montane Cloud Forest Foliar Sclereid 
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.Formerly at University of North CarolinaChapel HillUSA
  2. 2.CampinasBrazil

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