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. 2008 May 14;3(5):e2139. doi: 10.1371/journal.pone.0002139

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Kim et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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(A) the woody Sonchus alliance (Asterids, Euasterid II, Asterales) (species in the pictures, from top to bottom; Sonchus gandogeri*, S. acaulis*, and S. canariensis*) . (B) Echium (Asterids, Euasterid I, unplaced) (species in the pictures; Echium auberianum ^†, E. callithyrsum*, and E. wildpretii ^†). (C) the Aeonium alliance (Saxifragales) (species in the pictures; Aichryson punctatum ^∏, Monanthes muralis ^∏, Greenovia aurea*, and Aeonium cuneatum ^∏). (D) Sideritis (Asterids, Euasterid I, Lamiales) (species in the pictures, top left, Sideritis gomerae ^¶; top right, S. macrostachys ^¶; bottom row, S. eriocephala ^¶). (E) Crambe (Rosids, Eurosid II, Brassicales) (species in the pictures; Crambe scaberrima ^§ and C. pritzelii ^§). Branch colors: gray, closest continental relatives; black, the Canary Islands; blue, Madeira; red, Cape Verde. Branch lengths are proportional to changes on the trees and outgroup taxa are not shown. (photo credits: *Seung-Chul Kim, ^†Jose Mesa, ^¶Janet C. Barber, ^§Manuel Luis Gil González, and ^∏Mark Mort).