Summary
A new species of Mimosa L. sect. Calothamnos Barneby is described from the state of Mato Grosso do Sul, Brazil. M. roseoalba is characterised by its hirsutulose indumentum of plumose and penicillate trichomes, in having leaves with a single pair of pinnae, flowers in cylindrical spikes, the corolla tube covered by simple, retrorsely adpressed trichomes and the corolla lobe apices with longer plumose trichomes, and by white to pink coloured stamen filaments united basally for 0.5 mm.
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References
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Acknowledgements
We are grateful to Samira Rolim for the line drawing, to Tarciso Filgueiras and Melanie Thomas for kindly providing the Latin diagnosis, to José Rubens Pirani for help with inflorescence terminology, to Caio Eduardo Barbosa Coutinho for valuable assistance and pleasant company during fieldwork. Funding for A.P.S.-C.’s research was provided by CAPES (Coordenação de Aperfeiçoamento de Pessoal de Nível Superior), FAPESP (Fundação de Amparo à Pesquisa do Estado de São Paulo), IAPT (International Association for Plant Taxonomy) and KLARF (Kew Latin American Research Fellowship).
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Savassi-Coutinho, A.P., Lewis, G.P. & Souza, V.C. Mimosa roseoalba (Leguminosae: Mimosoideae), a new species from Mato Grosso do Sul, Brazil. Kew Bull 67, 827–831 (2012). https://doi.org/10.1007/s12225-012-9417-x
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DOI: https://doi.org/10.1007/s12225-012-9417-x