Three new species inCalatheaseriesComosae(Petersen) Schumann are described from Ecuador:Calathea pallidicosta, C. attenuataandC. lagoagriana. Calathea pallidicostais currently known only from Ecuador,C. lagoagrianaoccurs in both Colombia and Ecuador whileC. attenuatais more widespread, occurring in Colombia, Ecuador, Perú and Brasil.Calathea attenuataandC. pallidicostaare in the monomorphic‐bracted group ofC.seriesComosaewhileC. lagoagrianais in the dimorphic‐bracted group.Calathea lagoagrianapossibly hybridizes withC. loeseneriMacb
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