Cytotaxonomy and geographic distribution of cytotypes of species of the South American genus Chrysolaena (Vernonieae, Asteraceae)
Gisela M. Via do Pico, Yanina J. Pérez, María B. Angulo, and Massimiliano Dematteis
J Syst Evol . 2019, (5): 451 -467 .  DOI: 10.1111/jse.12471