Font, M.Vallès Xirau, Joan, 1959-Susanna de la Serna, AlfonsoGarcia i Jacas, Núria2012-11-092012-11-0920080010-0730https://hdl.handle.net/2445/32628Dysploidy and polyploidy are well documented in the large genus Centaurea, especially in sect. Acrocentron and in a small group of species from the Iberian Peninsula described as sect. Chamaecyanus, closely related to Acrocentron. We have explored two interesting cases of polyploid series in both sections: the polyploid series of Centaurea toletana in sect. Chamaecyanus and the series of C. ornata group in sect. Acrocentron. We have carried out a karyological study using both classic karyotype analyses and chromosome banding with fluorochromes.12 p.application/pdfengcc-by-nc (c) Consejo Superior de Investigaciones Científicas (CSIC), 2008http://creativecommons.org/licenses/by-nc/3.0/esCentàureesCitogenèticaCromosomesCentaureaCytogeneticsChromosomesinfo:eu-repo/semantics/article5595932012-11-09info:eu-repo/semantics/openAccess