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25 February 2020 Discovery of Three New Species of Acalypha L. (Euphorbiaceae, Acalyphoideae) from Madagascar and Their Conservation Status
Iris Montero-Muñoz, José María Cardiel, Geoffrey A. Levin
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Abstract

Three remarkable new species of Acalypha (Euphorbiaceae, Acalyphoideae) from Madagascar are described and illustrated. Acalypha isaloensis, found in the Isalo Massif of southwestern Ihorombe region, is morphologically similar to A. gracilipes, but differs by its habit, indument, presence of domatia, and inflorescence sexuality. This is the first report of pocket-shaped domatia in the genus. Acalypha rabesahalana and A. tremula, found in Diana and Sava regions in the far north of Madagascar, superficially resemble A. menavody, but they do not strongly resemble any other species known from Madagascar nor from mainland Africa. Preliminary conservation assessments of the three new species are provided, and all are considered endangered or critically endangered, despite occurring in legally protected areas.

© Copyright 2020 by the American Society of Plant Taxonomists
Iris Montero-Muñoz, José María Cardiel, and Geoffrey A. Levin "Discovery of Three New Species of Acalypha L. (Euphorbiaceae, Acalyphoideae) from Madagascar and Their Conservation Status," Systematic Botany 45(1), 122-130, (25 February 2020). https://doi.org/10.1600/036364420X15801369352379
Published: 25 February 2020
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