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Citation for Study 18540

About Citation title: "Domeykoa andina (Apiaceae; Azorelloideae), a new species from Northern Chile".
About Study name: "Domeykoa andina (Apiaceae; Azorelloideae), a new species from Northern Chile".
About This study is part of submission 18540 (Status: Published).

Citation

Saldivia P., Faundez L., Urbina-casanova R., & Scherson R.A. 2016. Domeykoa andina (Apiaceae; Azorelloideae), a new species from Northern Chile. Systematic Botany , .

Authors

  • Saldivia P.
  • Faundez L.
  • Urbina-casanova R. (submitter) Phone 56229785940
  • Scherson R.A.

Abstract

This study reports a new species of the Domeykoa (Apiaceae; Azorelloideae) from the Andes of northern Chile. Detailed description of the species and illustration are provided. Diagnostic morphological characters that allow distinguishing it from similar species are its erect habit, fewer number of flowers per umbel and opposite leaves. The new species is an annual or weakly perennial herb, erect, up to 25 cm high, profusely branched close to the base. Umbels are simple, sessile or sub-sessile with three yellow flowers. Fruits are glabrate. DNA was obtained for molecular phylogenetic analyses. Bayesian analyses showed that D. andina is nested within the previously recognized Domeykoa-Eremocharis clade, as sister to D. amplexicaulis from the south coast of Peru. This study confirms previous findings that neither of the two genera in the clade are monophyletic, raising questions on the nomenclature. The phylogeny also suggests an interesting Peru-Chile latitudinal disjunction of more than 500 km, also seen in other recently described species. However, a more complete phylogeny is needed to make conclusions on this matter. Based on IUCN criteria and categories, we suggest assigning a critically endangered (CR) category to Domeykoa andina.

Keywords

Atacama Desert, Eremocharis, Asteriscium clade, disjunction, phylogeny

External links

About this resource

  • Canonical resource URI: http://purl.org/phylo/treebase/phylows/study/TB2:S18540
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