Summary
A new species, Mesosphaerum caatingense Harley & J.F.B.Pastore (Lamiaceae: tribe Ocimeae: subtribe Hyptidinae), is described from the semi-arid Northeast region of Brazil known as the Caatinga biome, included under the domain of the STDF (Seasonally Tropical Dry Forest). The generic placement and its conservation status are assessed and its phenology is discussed. The new species is compared with some of its morphologically allied species, M. pectinatum, M. irwinii and M. sidifolium. Illustrations, photographs, a distribution map and a key to Brazilian species are also provided.
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Acknowledgements
We would like to thank Dra Ana Maria Giulietti for reading through this paper and giving advice. She was also with the first author (RMH) when we encountered the first specimen of this new taxon, in IPA in about 1996! JFBP thanks Dra Fátima Araújo from the herbarium CSTR for kindly sending duplicate material of the original specimen to CTBS.
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Harley, R.M., Pastore, J.F.B., de Souza Soares, A. et al. Mesosphaerum caatingense (Lamiaceae), a new species from the semi-arid Caatinga Region of Northeast Brazil. Kew Bull 74, 12 (2019). https://doi.org/10.1007/s12225-019-9795-4
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DOI: https://doi.org/10.1007/s12225-019-9795-4