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Issue: Vol. 682 No. 1: 16 Jan. 2025
Type: Article
Published: 2025-01-16
DOI: 10.11646/phytotaxa.682.1.8
Page range: 112-120
Abstract views: 107
PDF downloaded: 4

Two new species of Marantaceae from Reserva Natural Vale, Espírito Santo state, 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
Atlantic Rainforest Saranthe Zingiberales Ctenanthe Neotropics Monocots

Abstract

We describe two new species of Marantaceae of the Brazilian Atlantic Forest. These species were discovered in northern Espírito Santo state, inside Reserva Natural Vale. Ctenanthe brevibractea is here compared to C. lanceolata, and can be distinguished by its overall shorter stature, glabrous leaf sheath, inflorescence rachis with shorter internodes, component bracts obovate-acuminate, deciduous, holding 1–2 cymules, per cymule with one bracteole, and flowers with solitary, spathulate outer staminodes. Saranthe rufopilosa is most similar to S. leptostachya, but differs by having 2-nodated inflorescences, and indumentum of long stiff reddish trichomes disposed on peduncles, rachis, internodes of inflorescences, cymule peduncles, pedicels, sepals and ovary. Their distribution maps and photographs are also provided.

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