Taxonomic dissection based on molecular evidence of the Eriosyce curvispina complex (Cactaceae): identifying nine endemic species from Central Chile

• DOI: 10.3897/phytokeys.237.107403
• Publication Date: 2024-01-22T16:09:41Z
• Authors: Helmut E. Walter; Arón Cádiz-Véliz; Beatriz M. Meriño; Heidy M. Villalob...; Pablo C. Guerrero
• Keywords: Endemism

Chile’s distinctive flora, geographical isolation, and complex topography collectively contribute to a notable endemic species diversity, particularly within central regions identified as critical areas for biodiversity conservation. The cactus genus Eriosyce , currently circumscribed, encompasses seven sections, with sect. Horridocatus presenting notably group. This study investigates the E. curvispina complex, member of Notocacteae tribe common in Chile, by incorporating new populations examining phylogenetic relationships using four plastid one nuclear molecular marker. analysis sampled individuals nine independent lineages, each warranting recognition at rank. Despite minimal morphological differences among taxa, characters were utilized support stabilize DNA-based hypothesis. results highlight high taxonomic diversity these lineages have implications classification including combinations proposals conservation status.