Abstract
As a result of a taxonomic and phylogenetic study of Chamaecrista sect. Absus, we identified two new species of Chamaecrista from Brazil and Bolivia, which we designate here as C. oppositifolia and C. longistyla. Morphologically, C. oppositifolia resembles C. sincorana, while C. longistyla is similar to C. paraunana and C. brevicalyx. Description, illustration, diagnostic morphology, systematic position, phenology, distribution, images and preliminary conservation status are provided for both new species. Phylogenetic inference and morphology show that the two new species are clearly distinct and belong to C. sect. Absus, ser. Rigidulae (C. oppositifolia) and ser. Absoideae (C. longistyla).
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Acknowledgments
We express our gratitude to the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) for the grant to the first author, to Renato Galhardo for the illustrations, and to the staff of the HERBAN herbarium for assistance.
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de Souza, A.O., Matos, R.G. & da Silva, M.J. Two new species of Chamaecrista sect. Absus (Leguminosae, Casesalpinioideae) from Brazil and Bolivia with phylogenetic delimitation. Brittonia 71, 299–311 (2019). https://doi.org/10.1007/s12228-019-09583-y
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DOI: https://doi.org/10.1007/s12228-019-09583-y