Two new species of Mikania Willd. (Asteraceae: Eupatorieae) from Minas Gerais State, Brazil

ABSTRACT Mikania is a pantropical genus of Asteraceae with ca. 450 species distributed mainly in South America. Although most of its species occur in forested phytophysiognomies, significant richness is found in the mountaintop grasslands known as campos rupestres in Brazil. Recent botanical exploration of campos rupestres areas outside their core distribution, namely Serra do Padre Ângelo, Pico da Aliança, and Sete Salões State Park, all located in the eastern part of the state of Minas Gerais and within the Atlantic Forest phytogeographic domain, led to the description of several new plant species. After fieldwork and study of herbarium specimens, we recognize two new species of Mikania endemic to Pico da Aliança and Serra do Padre Ângelo. Mikania semirii is related to Mikania phaeoclados and differs by leaf indumentum, subinvolucral bract shape and size and position on the peduncle. Mikania funkiae is related to Mikania glauca and Mikania obtusata, and differs by the petiole length, leaf shape, texture, and margins. We provide full descriptions, illustrations, distribution maps, composite color figures, preliminary conservation status assessments, and comments on the taxonomy and ecology of these two species. These findings highlight the continued importance of floristic and taxonomic work on the rich eastern Brazilian flora.

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Main Authors: Oliveira,Caetano Troncoso, Antar,Guilherme Medeiros, Gonella,Paulo Minatel, Pirani,José Rubens
Format: Digital revista
Language:English
Published: Sociedade Botânica do Brasil 2022
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062022000100123
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spelling oai:scielo:S0102-330620220001001232022-04-27Two new species of Mikania Willd. (Asteraceae: Eupatorieae) from Minas Gerais State, BrazilOliveira,Caetano TroncosoAntar,Guilherme MedeirosGonella,Paulo MinatelPirani,José Rubens Asteraceae Campos rupestres Compositae critically endangered Mikania Mikaniinae Neotropical flora taxonomy ABSTRACT Mikania is a pantropical genus of Asteraceae with ca. 450 species distributed mainly in South America. Although most of its species occur in forested phytophysiognomies, significant richness is found in the mountaintop grasslands known as campos rupestres in Brazil. Recent botanical exploration of campos rupestres areas outside their core distribution, namely Serra do Padre Ângelo, Pico da Aliança, and Sete Salões State Park, all located in the eastern part of the state of Minas Gerais and within the Atlantic Forest phytogeographic domain, led to the description of several new plant species. After fieldwork and study of herbarium specimens, we recognize two new species of Mikania endemic to Pico da Aliança and Serra do Padre Ângelo. Mikania semirii is related to Mikania phaeoclados and differs by leaf indumentum, subinvolucral bract shape and size and position on the peduncle. Mikania funkiae is related to Mikania glauca and Mikania obtusata, and differs by the petiole length, leaf shape, texture, and margins. We provide full descriptions, illustrations, distribution maps, composite color figures, preliminary conservation status assessments, and comments on the taxonomy and ecology of these two species. These findings highlight the continued importance of floristic and taxonomic work on the rich eastern Brazilian flora.info:eu-repo/semantics/openAccessSociedade Botânica do BrasilActa Botanica Brasilica v.36 20222022-01-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062022000100123en10.1590/0102-33062021abb0329
institution SCIELO
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country Brasil
countrycode BR
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libraryname SciELO
language English
format Digital
author Oliveira,Caetano Troncoso
Antar,Guilherme Medeiros
Gonella,Paulo Minatel
Pirani,José Rubens
spellingShingle Oliveira,Caetano Troncoso
Antar,Guilherme Medeiros
Gonella,Paulo Minatel
Pirani,José Rubens
Two new species of Mikania Willd. (Asteraceae: Eupatorieae) from Minas Gerais State, Brazil
author_facet Oliveira,Caetano Troncoso
Antar,Guilherme Medeiros
Gonella,Paulo Minatel
Pirani,José Rubens
author_sort Oliveira,Caetano Troncoso
title Two new species of Mikania Willd. (Asteraceae: Eupatorieae) from Minas Gerais State, Brazil
title_short Two new species of Mikania Willd. (Asteraceae: Eupatorieae) from Minas Gerais State, Brazil
title_full Two new species of Mikania Willd. (Asteraceae: Eupatorieae) from Minas Gerais State, Brazil
title_fullStr Two new species of Mikania Willd. (Asteraceae: Eupatorieae) from Minas Gerais State, Brazil
title_full_unstemmed Two new species of Mikania Willd. (Asteraceae: Eupatorieae) from Minas Gerais State, Brazil
title_sort two new species of mikania willd. (asteraceae: eupatorieae) from minas gerais state, brazil
description ABSTRACT Mikania is a pantropical genus of Asteraceae with ca. 450 species distributed mainly in South America. Although most of its species occur in forested phytophysiognomies, significant richness is found in the mountaintop grasslands known as campos rupestres in Brazil. Recent botanical exploration of campos rupestres areas outside their core distribution, namely Serra do Padre Ângelo, Pico da Aliança, and Sete Salões State Park, all located in the eastern part of the state of Minas Gerais and within the Atlantic Forest phytogeographic domain, led to the description of several new plant species. After fieldwork and study of herbarium specimens, we recognize two new species of Mikania endemic to Pico da Aliança and Serra do Padre Ângelo. Mikania semirii is related to Mikania phaeoclados and differs by leaf indumentum, subinvolucral bract shape and size and position on the peduncle. Mikania funkiae is related to Mikania glauca and Mikania obtusata, and differs by the petiole length, leaf shape, texture, and margins. We provide full descriptions, illustrations, distribution maps, composite color figures, preliminary conservation status assessments, and comments on the taxonomy and ecology of these two species. These findings highlight the continued importance of floristic and taxonomic work on the rich eastern Brazilian flora.
publisher Sociedade Botânica do Brasil
publishDate 2022
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062022000100123
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