New species and new combinations in Brazilian Vernonieae (Asteraceae)
Abstract:Vernonia gertii Dematteis sp. nov. is described and illustrated from Serra da Bodoquena in the Brazilian state of Mato Grosso do Sul. The new species is characterized by the presence of large lanceolate leaf blades, attenuate at the base, and heads with pedicellate and aristate phyllaries, all of which clearly separate it from other South American members of Vernonieae. Vernonia gertii presents a superficial resemblance to V. eriolepis Gardn., which also shows aristate phyllaries and is distributed in Mato Grosso do Sul. However, V. eriolepis has sessile heads, ferrugineous pubescence and ovate-lanceolate leaves that are shortly attenuate at the base. In addition, a new combination in the endemic genus Mattfeldanthus H. Rob. & R. M. King (M. andrade-limae) is also proposed.
Document Type: Research Article
Affiliations: Instituto de Botánica del Nordeste (UNNE-CONICET), Casilla de Correo 209, 3400 Corrientes, Argentina.
Publication date: 2003-05-01
Impact Factor (2015): 2.9
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