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Type: Article
Published: 2019-05-10
Page range: 131–136
Abstract views: 20
PDF downloaded: 1

Dioscorea medusae (Dioscoreaceae), a new species from Espírito Santo, Brazil

Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, Rua Pacheco Leão, 915, 22460-030, Rio de Janeiro, RJ, Brazil
Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, Rua Pacheco Leão, 915, 22460-030, Rio de Janeiro, RJ, Brazil
Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, Rua Pacheco Leão, 915, 22460-030, Rio de Janeiro, RJ, Brazil
Monocots Atlantic Forest Dioscoreales inselberg Neotropics yams

Abstract

We describe here Dioscorea medusae, a new species that occurs in rupicolous plant communities on rocky outcrops (inselbergs) in northwestern Espírito Santo State, in Southeastern Brazil. This new species is markedly different from all species of Dioscorea from the Neotropic and it differs by its numerous short racemes, and flowers with three stamens and conspicuous anthers. We provide here a morphological description of the new species, notes on its habitat, distribution and phenology.