A new Eugenia (Myrtaceae) from Amazonian Brazil: an unusual combination of features reveals more variability than previously thought

Autor(es)

Giaretta, Augusto ^[1] ; Sano, Paulo Takeo ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Dept Bot, Inst Biociencias, Programa Posgrad Ciencias Biol Bot, BR-05508900 Sao Paulo, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: PHYTOTAXA; v. 415, n. 5, p. 264-270, SEP 5 2019.
• Citações Web of Science: 0

Resumo

Myrtaceae includes the genus Eugenia with ca. 1100 species mostly distributed in South and Central America. Molecular phylogenies currently support a broad and monophyletic Eugenia including species with bud closed by the fused calyx but splitting at anthesis, style length twice as the stamens, and ovary internally hairy. These characters have been consistently associated to infrageneric groups; however, Eugenia lasiothecia, a new exceptional species that retains a n unusual combination of fused calyx in the bud, bracteoles fused forming a ring, and ovary internally hairy prevent a reliable placement into one of the infrageneric sections of Eugenia based on current morphological knowledge. This new species is described, illustrated and a distribution map is provided. Additionally, its conservation status is discussed. (AU)

• Processo FAPESP: 14/04043-9 - Filogenia, biogeografia e revisão taxonômica de Calycorectes O. Berg (Myrtaceae)
• Beneficiário: Augusto Giaretta de Oliveira
• Linha de fomento: Bolsas no Brasil - Doutorado