Eriocaulaceae na Reserva Natural da Vale, Linhares, Espírito Santo, Brasil

Abstract

ResumoEriocaulaceae compreende aproximadamente 1400 espécies distribuídas em dez gêneros. Apesar da maior parte dos estudos taxonômicos na família se concentrarem na Cadeia do Espinhaço, as áreas de restinga possuem uma grande diversidade de espécies. Este trabalho fornece o tratamento florístico das Eriocaulaceae na Reserva Natural da Vale, no Espírito Santo. Foram encontradas nove espécies, distribuídas em seis gêneros: Actinocephalus, Comanthera, Leiothrix e Tonina com um representante cada e Syngonanthus e Paepalanthus com dois e três representantes, respectivamente. São fornecidas fotografias, descrições, chave de identificação, além de comentários sobre distribuição geográfica e variação morfológica das espécies. Palavras-chave: flora, Paepalanthus, Syngonanthus, taxonomia, Vale do Rio Doce. AbstractEriocaulaceae comprises ca. 1400 species arranged in ten genera. Most of the taxonomic efforts in the family are focused in the Espinhaço Range, its center of diversity. However, the sand dunes in Brazil have also a significant species richness. This manuscript presents the floristic treatment of the Eriocaulaceae from the Reserva Natural da Vale in Espírito Santo State. A total of nine species distributed in six genera were recorded. The genera Actinocephalus, Comanthera, Leiothrix, and Tonina are represented by one species each, Syngonanthus is represented by two species and Paepalanthus by three species. Photos, descriptions, an identification key, as well as comments on geographic distribution and morphological variation are provided.

Distribution and conservation of Eriocaulaceae in Espírito Santo, Brazil

“…Eriocaulon ligulatum , Leiothrix hirsuta , L. rufula , Paepalanthus calvescens , P. caparoensis , P. globosus , P. macropodus , and Syngonanthus caulescens did not previously have their distribution attributed to the state (Flora do Brasil 2020 under construction). Syngonanthus restingensis had its distribution known only from sand dunes of Bahia and Rio de Janeiro (Hensold et al 2012), however, while Silva & Trovó (2016) only found the occurrence of this species in the Vale Natural Reserve (ES), this study also recorded this species in Vale Natural Reserve and, for the first time, in the Paulo César Vinha State Park. Currently, only P. capixaba and P. macaheensis are listed as endangered (CNCFlora 2019), however, only 68 of 634 Brazilian Eriocaulaceae species have conservation status assessments, so it is possible that more species are threatened.…”