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1 June 2012 Taxonomic Treatment of Cichorieae (Asteraceae) Endemic to the Juan Fernández and Desventuradas Islands (SE Pacific)
José A. Mejías, Seung-Chul Kim
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Abstract

The evolutionary origin and taxonomic position of Dendroseris and Thamnoseris (Cichorieae, Asteraceae) are discussed in the light of recent molecular systematic studies. Based on the previous development of a robust phylogenetic framework, we support the inclusion of the group as a subgenus integrated within a new and broad concept of the genus Sonchus. This approach retains information on the evolutionary relationships of the group which most likely originated from an adaptive radiation process; furthermore, it also promotes holophyly in the subtribe Hyoseridinae (formerly Sonchinae). Consequently, all the former Dendroseris and Thamnoseris species must be transferred to Sonchus. A preliminary nomenclatural synopsis of the proposed subgenus is given here, including the new required combinations.

© Finnish Zoological and Botanical Publishing Board 2012
José A. Mejías and Seung-Chul Kim "Taxonomic Treatment of Cichorieae (Asteraceae) Endemic to the Juan Fernández and Desventuradas Islands (SE Pacific)," Annales Botanici Fennici 49(3), 171-178, (1 June 2012). https://doi.org/10.5735/085.049.0303
Received: 29 June 2011; Accepted: 1 November 2011; Published: 1 June 2012
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