Plant Systematics and Evolution

, Volume 225, Issue 1–4, pp 133–140

Sarcostemma R.Br. (Apocynaceae — Asclepiadoideae) — a controversial generic circumscription reconsidered: Evidence fromtrnL-F spacers

  • S. Liede
  • A. Täuber
Article

Abstract

The polyphyly ofSarcostemma sensu latu, suspected on morphological and karyological reasons is confirmed by analysis of thetrnL-F spacer region. With the exception ofCynanchum montevidense (subgen.Mellichampia, Sundell 1981), Old World and New World taxa belong to different clades.Sarcostemma sensu stricto andPlatykeleba show a strong affinity to Old WorldCynanchum; the affinities ofOxystelma cannot be determined at present.Philibertia andBlepharodon are sister groups, both are sister toFunastrum, andPentacyphus is basal to the New World clade.

Key words

Gentianales Apocynaceae Asclepiadoideae Blepharodon Funastrum Pentacyphus Philibertia Platykeleba Sarcostemma chloroplast DNA phylogeny trnT-trnL spacer trnL intron trnL-trnF spacer 

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Copyright information

© Springer-Verlag 2000

Authors and Affiliations

  • S. Liede
    • 1
  • A. Täuber
    • 1
  1. 1.Department of Plant SystematicsUniversity of BayreuthBayreuthGermany

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