Two New Species of Tibouchina (Melastomataceae) from Brazil

Paulo José Fernandes Guimarães

doi:10.3417/2012029

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Paulo José Fernandes Guimarães¹

¹Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, Rua Pacheco Leão 915, 22460-030, Rio de Ja

Abstract

Tibouchina bruniana P. J. F. Guim. and T. araguaiensis P. J. F. Guim., two new species from Goiás and Tocantins, respectively, in central Brazil, are described, illustrated, and compared to their putative closest relatives. Both new species belong to Tibouchina sect. Barbigerae Naudin, which is characterized by long, simple trichomes on the anthers, positioned over the union between the staminal filament and connective. Tibouchina bruniana can be distinguished by its solitary flowers, less often in dichasia, and the diagnostic characters of T. araguaiensis presents as ciliate and overlapping triangular hypanthial scales.

Citation Download Citation

Paulo José Fernandes Guimarães "Two New Species of Tibouchina (Melastomataceae) from Brazil," Novon: A Journal for Botanical Nomenclature 23(1), 42-46, (8 April 2014). https://doi.org/10.3417/2012029

Published: 8 April 2014

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