Three new species of Columnea (Gesneriaceae) from the western Andean slopes of Ecuador and Colombia

Clark JL, Tobar F, Clavijo L, Perret M & Graham CH
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Clark, J. L., Tobar, F., Clavijo, L., Perret, M., & Graham, C. H. (2021). Three new species of Columnea (Gesneriaceae) from the western Andean slopes of Ecuador and Colombia. PhytoKeys, 182, 67-82. https://doi.org/10.3897/PHYTOKEYS.182.69016