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Issue: Vol. 752 No. 2: 22 Apr. 2026
Type: Article
Published: 2026-04-22
DOI: 10.11646/phytotaxa.752.2.2
Page range: 97-120
Abstract views: 0
PDF downloaded: 0

Disentangling the Leiothrix angustifolia species complex (Eriocaulaceae), with the description of three new endemic species from the Chapada Diamantina (Bahia, Brazil): L. chapadensis, L. montana and L. sincorensis

Universidade Estadual de Feira de Santana, Programa de Pós-Graduação em Botânica, Departamento de Ciências Biológicas, Av. Transnordestina s.n., Novo Horizonte, 44036-900, Feira de Santana, Bahia, Brazil
Instituto Tecnológico Vale, Rua Boaventura 955, Belém, Pará, Brazil
Universidade Estadual de Feira de Santana, Programa de Pós-Graduação em Botânica, Departamento de Ciências Biológicas, Av. Transnordestina s.n., Novo Horizonte, 44036-900, Feira de Santana, Bahia, Brazil
Universidade Federal do Maranhão, Coordenação do Curso de Ciências Biológicas - Licenciatura, Av. dos Portugueses 1966, Bacanga, 65080-805, São Luís, Maranhão, Brazil
Royal Botanic Gardens, Herbarium, Kew, Richmond, Surrey, England
Universidade Federal do Recôncavo da Bahia, Programa de Pós-Graduação em Recursos Genéticos Vegetais, Rua Rui Barbosa 710, 44380-000, Cruz das Almas, Brazil
Blanchet`s collections Botanical History Campo rupestre Espinhaço Range monocots

Abstract

Paepalanthus angustifolius with flat leaves and P. schlechtendalii with conduplicate leaves were described by Friedrich Körnicke more than 150 years ago, from collections by Blanchet from the Chapada Diamantina, Bahia, Brazil. Afterwards, those species were transferred to the genus Leiothrix. Based on the type-specimen analyses and new collections from the Chapada Diamantina, including a closely related L. rufula, we propose the epitypification of L. angustifolia, together with a more narrow circumscription of this species, and recognize three new species: L. chapadensis, L. montana and L. sincorensis, endemic to the same region. We present an identification key to the species, full descriptions, illustrations, and preliminary conservation status assessments. Comments on the Blanchet collection in the Chapada Diamantina region are also provided.

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How to Cite

Giulietti, A.M., Watanabe, M.T.C., Guerra, G.C., Marinho, L., Harley, R.M. & Zappi, D.C. (2026) Disentangling the Leiothrix angustifolia species complex (Eriocaulaceae), with the description of three new endemic species from the Chapada Diamantina (Bahia, Brazil): L. chapadensis, L. montana and L. sincorensis . Phytotaxa 752 (2): 97–120. https://doi.org/10.11646/phytotaxa.752.2.2