An overview of the Brazilian inselberg genus Ameroglossum (Linderniaceae, Lamiales), with the description of seven new species

  • Erton M. Almeida Laboratório de Citogenética e Evolução Vegetal, Departamento de Botânica, Centro de Biociências, Universidade Federal de Pernambuco, Recife, Pernambuco, CEP: 50670-901, Brazil
  • Maarten J.M. Christenhusz School of Molecular and Life Sciences, Curtin University, GPO Box U1987, Perth WA 6845, Australia
  • Artur Maia Wanderley Laboratório de Ecologia Vegetal Aplicada, Programa de Pós-Graduação em Biologia Vegetal, Universidade Federal de Pernambuco, CEP: 50372-970 Recife, Pernambuco, Brazil
  • Joel Maciel P. Cordeiro Departamento de Geografia, Centro de Humanidade, Universidade Estadual da Paraíba, Campus III, CEP: 58200-000, Guarabira, Paraíba, Brazil
  • José Iranildo Miranda De Melo Universidade Estadual da Paraíba, Centro de Ciências Biológicas e da Saúde, Departamento de Biologia, Campus I, Rua das Baraúnas, 351, CEP: 58429-500 Campina Grande, Paraíba, Brazil
  • Fabiane Rabelo Da Costa Batista Instituto Nacional do Semiárido–INSA, Av. Francisco Lopes de Almeida, S / N, Bairro Serrotão, Campina Grande, Paraíba, CEP: 58429-970, Brazil
  • Leonardo P. Felix Departamento de Ciências Biológicas, Centro de Ciências Agrárias, Universidade Federal da Paraíba, Campus II, CEP: 58397-000, Areia, Paraíba, Brazil
DOI: https://doi.org/10.5852/ejt.2021.746.1313
Keywords: Borborema Plateau, co-evolution, endangered species, endemism, taxonomy

Abstract

Field studies of the inselberg flora of north-eastern Brazil have resulted in the discovery of much greater morphological diversity of the genus Ameroglossum, than previously envisaged. These enigmatic plants are endemic to isolated rock outcrops, which have long been surrounded by unsuitable habitat. The morphological forms are geographically isolated and stable in cultivation when grown under similar conditions. We here provide detailed descriptions of the two previously known species and propose an additional seven new species in the genus. A taxonomic revision of the genus, including an identification key is provided. We hypothesize that the evolution of this genus is driven by the diversity of their hummingbird pollinators. Due to the threatened nature of inselberg habitats and the small populations found for most taxa, the species described here are likely to be under threat and in need for formal redlisting.

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Published
2021-04-15
How to Cite
Almeida, E. M., Christenhusz, M. J., Wanderley, A. M., Cordeiro, J. M. P., De Melo, J. I. M., Da Costa Batista, F. R., & Felix, L. P. (2021). An overview of the Brazilian inselberg genus Ameroglossum (Linderniaceae, Lamiales), with the description of seven new species. European Journal of Taxonomy, 746(1), 1-25. https://doi.org/10.5852/ejt.2021.746.1313
Issue
Vol. 746 (2021)
Section
Research article

Copyright (c) 2021 Erton M. Almeida, Maarten J.M. Christenhusz, Artur Maia Wanderley, Joel Maciel P. Cordeiro, José Iranildo Miranda De Melo, Fabiane Rabelo Da Costa Batista, Leonardo P. Felix

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