Macrophytes of the Capitão Poço river micro-basin, State of Pará, Eastern Amazon, Brazil: floristic composition and identification key for the species

Macrophytes of the Capitão Poço river micro-basin, State of Pará, Eastern Amazon, Brazil: floristic composition and identification key for the species

ABSTRACT We aimed to characterize the floristic composition, detect the life forms, and provide an identification key for the macrophyte species of the Capitão Poço river micro-basin in the State of Pará, located in the Eastern Amazon. The collected specimens were identified and deposited in the HCP...

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Bibliographic Details
Published in:Hoehnea Vol. 51
Main Authors: Carvalho, Lucimar Silva, Soares, Witalo Cleidson Rodrigues, Barberena, Felipe Fajardo Villela Antolin, Comassetto, Thaisa Pegoraro
Format: Journal Article
Language:English
Portuguese
Published: Instituto de Pesquisas Ambientais 2024
Instituto de Botânica
Subjects:
aquatic flora
Brazilian Amazon
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new records
PLANT SCIENCES
streams
aquatic flora
flora aquática
streams
inventário
Brazilian Amazon
new records
Amazônia Brasileira
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novos registros
riachos
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Summary:ABSTRACT We aimed to characterize the floristic composition, detect the life forms, and provide an identification key for the macrophyte species of the Capitão Poço river micro-basin in the State of Pará, located in the Eastern Amazon. The collected specimens were identified and deposited in the HCP herbarium. We found 23 species distributed in 19 genera and 14 families of macrophytes. The families with the highest species richness were Cyperaceae (six spp.), Poaceae (three spp.), Onagraceae and Plantaginaceae (two spp. each). We present here the first record of Dichanthelium aequivaginatum from the Brazilian Amazon and the Northern region of Brazil. We suggest that floristic-taxonomic studies of macrophytes in the hydrographic basins of the northeastern region of Pará should be intensified in order to better understand the regional flora of this group. RESUMO Nosso objetivo foi caracterizar a composição florística, detectar as formas de vida e fornecer uma chave de identificação para as espécies de macrófitas da microbacia do rio Capitão Poço, no Estado do Pará, localizada na Amazônia Oriental. Os espécimes coletados foram identificados e depositados no herbário HCP. Encontramos 23 espécies de macrófitas distribuídas em 19 gêneros e 14 famílias. As famílias com maior riqueza de espécies foram Cyperaceae (seis spp.), Poaceae (três spp.), Onagraceae e Plantaginaceae (duas spp. cada). Apresentamos aqui o primeiro registro de Dichanthelium aequivaginatum para a Amazônia Brasileira e região Norte do Brasil. Sugerimos que sejam intensificados os estudos florístico-taxonômicos de macrófitas nas bacias hidrográficas da região nordeste do Pará, a fim de conhecer melhor a flora regional deste grupo.
ISSN:0073-2877
2236-8906
2236-8906
DOI:10.1590/2236-8906e692023