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Article
Published: 2022-03-08

Dichorisandra rhizantha (Commelinaceae), a new morphologically unusual species from Bahia, Brazil

Universidade Federal do Recôncavo da Bahia (UFRB), Cruz das Almas, Bahia, Brazil
Universidade Federal do Recôncavo da Bahia (UFRB), Cruz das Almas, Bahia, Brazil
Universidade Federal do Recôncavo da Bahia (UFRB), Cruz das Almas, Bahia, Brazil
Universidade Federal do Maranhão (UFMA), Centro de Ciências Biológicas e da Saúde, Departamento de Biologia, São Luís, Maranhão, Brazil
Rua Dr. Mario de Nucci 500, Campinas, SP, Brazil.
Universidade Estadual de Campinas (UNICAMP), Instituto de Biologia, Departamento de Biologia Vegetal, Campinas, SP, Brazil
Commelinales Dichorisandra hirtella endemism flora of Bahia Monocots

Abstract

We describe, discuss, and illustrate Dichorisandra rhizantha, a new species from a transitional area between the Atlantic Forest and Caatinga domains in eastern Bahia state, Brazil. The species was assessed as Endangered, especially for its distribution restricted to forest fragments. The new species is morphologically similar to D. hirtella, D. radicalis and D. jardimii, but clearly differs from these by the inflorescence arising directly from the rhizome, and a pubescent indument on stem, leaves and sepals. We also present a distribution map of the species and taxonomic comments.

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