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Issue: Vol. 617 No. 1: 28 Sept. 2023
Type: Monograph
Published: 2023-09-28
DOI: 10.11646/phytotaxa.617.1.1
Page range: 1-127
Abstract views: 334
PDF downloaded: 33

A taxonomic revision of the genus Eperua (Leguminosae, Detarioideae, Detarieae)

Programa de Pós-Graduação em Biologia Vegetal; Instituto de Biologia; Universidade Estadual de Campinas; Rua Monteiro Lobato; 255 ; Campinas; São Paulo; Brazil; 13083-862
Programa de Pós Graduação em Ciências Biológicas; área de concentração Botânica Tropical; Universidade Federal Rural da Amazônia e Museu Paraense Emílio Goeldi; Av. Perimetral; 1901; Terra Firme; Belém; Pará; Brasil; CEP 66077-83o
Naturalis Biodiversity Center; Leiden; The Netherlands; Quantitative Biodiversity Dynamics; Dept. of Biology; Utrecht University; Utrecht; The Netherlands
UNELLEZ-Guanare; Programa de Ciencias del Agro y del Mar; Herbario Universitario (PORT); Mesa de Cavacas; estado Portuguesa; Venezuela; 3350; Compensation International Progress S.A. Ciprogress–Greenlife; Bogotá D.C.; Colombia
Museu Paraense Emilio Goeldi – MPEG Museu Paraense Emílio Goeldi/Universidade Federal Rural da Amazônia; Programa de Pós- Graduação em Ciências Biológicas – Botânica Tropical; Belém; Pará; Brazil; 66077-830
Empresa Brasileira de Pesquisa Agropecuária; Embrapa Amazônia Oriental; Laboratório de Botânica; Trav. Enéas Pinheiro; s/n; Marco; CEP 66095-903
Instituto de Pesquisas Jardim Botânico do Rio de Janeiro; Rua Pacheco Leão; 915; Rio de Janeiro; RJ; Brazil; 22460-030
Eudicots Eperua Leguminosae Detarioideae Detarieae

Abstract

We present a comprehensive taxonomic revision of the tree genus Eperua, encompassing several significant findings. We identify and recognize a total of 19 species (including two new species described herein; E. froesii, E. reddeniae), as well as five subspecies (including one new, E. grandiflora subsp. ciliata), and six varieties (including one new, E. glabriflora var. gynopubescens). We also propose the synonymization of E. praesagata with E. glabra due to the absence of discernible morphological differences, which is supported by molecular data. In addition to these novelties, our revision offers an updated key, illustrations, photos, and maps. Detailed taxonomic comments are provided, discussing morphological similarities and differences between taxa. Furthermore, comprehensive information is provided for each species, including data on phenology, distribution, habitat, conservation status, and vernacular names. Eperua froesii is being described from specimens collected more than 50 years ago, while E. reddeniae and E. grandiflora subsp. ciliata from specimens collected recently (2004–2006). This emphasizes the critical role of herbarium collections in biodiversity discovery and underscores the significance of historical specimens. Our taxonomic comments add to Cowan’s (1975) revision, in which the author concentrated on listing characteristics considered advanced and less advanced, while here we focus on morphological similarities and differences between taxa. In conclusion, this new taxonomic revision significantly enhances our knowledge of the genus Eperua and provides a basis for further research in evolution, ecology, and phytochemistry.

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