An overview of the systematics and diversity of Poales in the Neotropics with emphasis on the Brazilian species

Marccus Vinícius Alves, Marcelo Trovó, Rafaela Forzza, Pedro Viana

Resumo


Abstract

Poales represents a major part of Angiosperm and Monocot diversity. The families encompass ca. 20,000 species which is about 7% of the Angiosperms and 33% of the Monocots. Bromeliaceae, Cyperaceae, Eriocaulaceae, Juncaceae, Mayacaceae, Poaceae, Rapateaceae, Thurniaceae, Typhaceae, and Xyridaceae are the families represented in the Neotropics. In general terms some areas in the Neotropics could be considered hotspots for Poales with a high number of species in several genera and several centers of endemism – the Guayana Shield, Espinhaço Range and Atlantic Forest are highly diverse in Poales. In terms of the Brazilian flora, the order is well represented in the entire country with almost 4,400 species. It represents more than 50% of the total number of species of Monocotyledons in Brazil. The main goal here is to summarize the available information and provide an overview of the Poales in the Neotropics. The state of knowledge for each family, focused on the Brazilian flora, is provided and reinforces the importance of new studies in key-groups
looking beyond the understanding of their diversity on the continent but also the conservation of the species.


Palavras-chave


Bromeliaceae, Cyperaceae, Eriocaulaceae, Juncaceae, Mayacaceae, Rapateaceae, Thurniaceae, Typhaceae, Xyridaceae

Texto completo:

PDF (artigo / paper)


Esta publicação é filiada à ABEC

Licença Creative Commons
Rodriguésia - Revista do Jardim Botânico do Rio de Janeiro is licensed under a Creative Commons Atribuição-Uso Não-Comercial 3.0 Unported License.
A licença se aplica a todos os trabalhos disponíveis no site rodriguesia.jbrj.gov.br.