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Issue: Vol. 661 No. 2: 30 Jul. 2024
Type: Article
Published: 2024-07-30
DOI: 10.11646/phytotaxa.661.2.3
Page range: 157-168
Abstract views: 56
PDF downloaded: 9

Staurochlamys (Neurolaeneae, Asteraceae): an endemic genus from Cerrado, Brazil

Programa de Pós-Graduação em Botânica, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves, 9500 Campus do Vale, Bairro Agronomia, Porto Alegre, RS 91501-970, Brazil, Fundação Zoobotânica da Prefeitura de Belo Horizonte, Herbário BHZB, Belo Horizonte, MG 31365-450 Brazil
Programa de Pós-Graduação em Botânica, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves, 9500 Campus do Vale, Bairro Agronomia, Porto Alegre, RS 91501-970, Brazil
Programa de Pós-Graduação em Botânica, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves, 9500 Campus do Vale, Bairro Agronomia, Porto Alegre, RS 91501-970, Brazil
Compositae Heliantheae Alliance Savanna Species distribution model Threatened species Eudicots

Abstract

Staurochlamys is a monospecific genus found exclusively in the Brazilian Cerrado, recognized by a unique morphological trait in the Asteraceae: the flattened involucre. Prior research into this genus has been limited, and this paper represents the first comprehensive investigation exclusively dedicated to it. This study presents a thorough morphological description of the species, a nomenclatural revision, insights into the species distribution, phenology, a preliminary evaluation of extinction risk, details related to risk assessment, and the species distribution modelling. Additionally, previously unlisted collections have been incorporated, with careful consideration of habitat details. The genus is reaffirmed as an exclusive component to the Brazilian Cerrado, bearing an ‘Endangered’ classification, and historical modeling has proposed a hypothesis to explain the outliers in its current distribution.

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