Abstract
Isachne burchellii, an endemic new species from the Brazilian Atlantic Forest, is here recognized as distinct from Isachne goiasensis based on macro and micromorphological characters, geographic distribution and ecological evidence. This new species is illustrated and its taxonomic and morphological affinities with I. goiasensis are discussed.
Resumo
Isachne burchellii, uma nova espécie endêmica da Mata Atlântica do Brazil, é aqui reconhecida como distinta de Isachne goiasensis com base em características macro e micromorfológicas, distribuição geográfica e evidências ecológicas. Esta nova espécie é ilustrada e suas afinidades taxonômicas e morfológicas com I. goiasensis são discutidas
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Acknowledgments
The authors thank the curators and staff of the herbaria we physically consulted in Brazil, and those from which we requested loans or high-resolution images. Special thanks are due to Dr. Otávio L. Marques da Silva, Dr. Sérgio Romaniuc Neto and Dr. Marc Pignal for their help in obtaining high-resolution images of reproductive structures from type collections at P, and Dr. Matthew Pace for allowing us to sample from the holotype of I. burchellii at NY. We would also like to thank Dr. Regina Célia de Oliveira, Dr. André Rodolfo de Oliveira, and MSc. Mayco Werllen for their support during the stay of the first author at the Universidade de Brasília; Dr. José Francisco Montenegro Valls for sharing his knowledge and valuable taxonomic commentaries; Dr. Priscila Rosa for facilitating the collection of I. goiasensis in the Jardim Botânico de Brasília; Dr. Luciana Benatti and Mr. André Aguillera for the SEM images; Mr. Klei Rodrigo Souza for the line drawings; Dr. Rosangela Simão-Bianchini, Dr. Maria da Graças Wanderley, and two anonymous reviewers for their valuable contributions. RSR thanks CAPES for a doctoral fellowship and the Instituto de Botânica for the continuous support of our research on the Brazilian grasses. Finally, we would also like to dedicate this work to the memory of the late Mr. Diacis Alvarenga, an esteemed friend who worked for years in the Reserva Ecológica do IBGE with the second author, and who helped us during our recent expeditions in Goiás and Distrito Federal.
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Rodrigues, R.S., Filgueiras, T.S. Isachneburchellii (Poaceae, Micrairoideae) from Rio de Janeiro, Brazil – an endemic new species segregated from Isachne goiasensis. Brittonia 71, 242–252 (2019). https://doi.org/10.1007/s12228-019-09576-x
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DOI: https://doi.org/10.1007/s12228-019-09576-x