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.
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Liede, S., Täuber, A. Sarcostemma R.Br. (Apocynaceae — Asclepiadoideae) — a controversial generic circumscription reconsidered: Evidence fromtrnL-F spacers. Pl Syst Evol 225, 133–140 (2000). https://doi.org/10.1007/BF00985463
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DOI: https://doi.org/10.1007/BF00985463