Abstract
This study provides new records of Macroclinium roseum, a species originally described from the Brazilian state of Rio de Janeiro, and which appears to be endemic to the Brazilian Atlantic Forest. The new records expand the documented distribution of the genus in the Atlantic Forest to the states of Espírito Santo and Alagoas. Previous reports of the species from the Amazon appear to have been made in error. The collections from Espírito Santo and Alagoas, made in 2005 and 2017, respectively, are the first collections of M. roseum since its description in 1882. An updated description and distribution map for the species are provided, along with photographs, assessment of the species’ conservation status, and a key for the identification of the Brazilian species of Macroclinium. A lectotype and epitype are designated for M. roseum.
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Acknowledgements
We are indebted to the CAPES-PNPD program and CNPq for funding our field research and herbarium visits. We also thank Scott Heald for helping to correct the English composition in the manuscript and two anonymous reviewers for their careful reading of the manuscript and for their highly appreciated and insightful comments.
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Pessoa, E.M., Brito, V., Ralf-Neto, F. et al. Expanding the distribution of Macroclinium (Oncidiinae, Orchidaceae) and rediscovery of M. roseum. Brittonia 71, 129–133 (2019). https://doi.org/10.1007/s12228-018-9557-x
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DOI: https://doi.org/10.1007/s12228-018-9557-x