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Type: Article
Published: 2017-07-07
Page range: 237–246
Abstract views: 22
PDF downloaded: 1

A new species of Mimosa (Leguminosae) endemic to the Brazilian Cerrado

Jardim Botânico do Rio de Janeiro, Pacheco Leão 915, 22460-030, Rio de Janeiro, RJ, Brazil
Jardim Botânico do Rio de Janeiro, Pacheco Leão 915, 22460-030, Rio de Janeiro, RJ, Brazil
Jardim Botânico do Rio de Janeiro, Pacheco Leão 915, 22460-030, Rio de Janeiro, RJ, Brazil
Embrapa Recursos Genéticos e Biotecnologia, Parque Estação Biológica–PqEB, 70770-901, Brasília, DF, Brazil
Endemism Espinhaço mountain range Serra do Cabral Fabaceae Taxonomy Sympatric Speciation Eudicots

Abstract

Mimosa is a very large genus with more than 540 species, which are distributed mainly in the Neotropics and are especially diverse in the Cerrado, where the genus shows high rates of endemism.

         The Serra do Cabral mountain range, which is part of the Espinhaço mountain range, contains representative remnants of the Cerrado and is a very important area for the genus, where at least 20 taxa of Mimosa are reported. Unfortunately, it is a threatened and over-exploited region. Here we describe a new narrow endemic species from the Serra do Cabral, Mimosa osmarii, that shows affinities with M. paucifolia var. scoparia, a sympatric taxon. The conservation status of M. osmarii was assessed as vulnerable.