Baccharis sect. Caulopterae (Asteraceae, Astereae) no Rio Grande do Sul, Brasil

Heiden, Gustavo; Iganci, João Ricardo Vieira; Macias, Leila

doi:10.1590/2175-7860200960411

Cited by 35 publications

(28 citation statements)

References 9 publications

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“…The richness of Asteraceae and Fabaceae in our study converged with the result reported by Lima et al (2009) in the checklist of aquatic macrophytes of the state of Pernambuco, wherein both of these families as well as the two previous families are the four richest. It is known that species of Asteraceae are particularly common in several vegetation types in Brazil (Souza and Lorenzi 2008), likely due to the morphological adaptations of the fruits, which have a persistent pappus transformed into a dispersal structure, primarily for anemochory and zoochory (Heiden et al 2007). Considering Fabaceae, we believe that the morphological, ecophysiological and reproductive plasticity of the sub-families Faboideae, Caesalpinioideae and Mimosoideae can explain the wide specific richness of the family in ecotonal areas and in wetlands of the Northeast.…”

Section: Resultsmentioning

confidence: 99%

Aquatic macrophytes of Northeastern Brazil: checklist, richness, distribution and life forms [with erratum]

Júnior¹,

Lima²,

Silva³

et al. 2013

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Aquatic plants have great influence on the structure and dynamics of aquatic ecosystems, thereby contributing considerably to biodiversity. In Brazil, knowledge of the biodiversity of aquatic macroflora is still limited. We present a checklist of aquatic macrophytes occurring in the northeastern region of Brazil through a bibliographic search. We recorded a total of 412 species, 217 genera and 72 families. The most representative families were Cyperaceae (70 species), Poaceae (38), Fabaceae (27) and Asteraceae (20). The States with highest number of species were Pernambuco (370), Bahia (360), Ceará (267) and Paraíba (261). The best-represented life forms were amphibious (193 species) and emergent (100). The aquatic flora of Northeastern Brazil exhibits high species richness; however, there is a scarcity of records of aquatic macrophytes for the States of Alagoas, Rio Grande do Norte, Maranhão, Sergipe and Piauí.

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Section: Resultsmentioning

confidence: 99%

Aquatic macrophytes of Northeastern Brazil: checklist, richness, distribution and life forms [with erratum]

Júnior¹,

Lima²,

Silva³

et al. 2013

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“…elaegnoides), Paniculatae (B. coridifolia) and Caulopterae (B. pentaptera). 9,46,47 The essential oils extracted from all three species had a similar profile by presenting low monoterpene/sesquiterpene ratios and co-occurrence of many major compounds, principally the sesquiterpene spathulenol and caryophyllene oxide. A very different composition of an essential oil from the aerial parts of flowering female B. coridifolia has been published, 48 whereas no studies could be found on the volatiles from B. semiserrata var.…”

Section: J Braz Chem Soc 1044 Chemical Composition Similarity Betmentioning

confidence: 98%

Chemical composition similarity between the essential oils isolated from male and female specimens of each five Baccharis species

Besten

Jasinski

Costa

et al. 2012

J. Braz. Chem. Soc.

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Nos poucos estudos publicados comparando óleos essenciais de espécimes femininos e masculinos de espécies Baccharis, fortes diferenças entre as composições de ambas as amostras foram sempre encontradas. Os experimentos realizados nesta pesquisa utilizam estratégias para minimizar a interferência de fatores genéticos e ecológicos. Os óleos essenciais das folhas de espécimes femininos e masculinos de cinco espécies Baccharis foram pesquisados com uso de um cromatógrafo gasoso acoplado a um espectrômetro de massas e a um detector de ionização de chama (CG-EM-DIC): B. caprariaefolia e B. dracunculifolia, já pesquisadas anteriormente com objetivos similares; e B. coridifolia, B. semiserrata var. elaegnoides e B. pentaptera, as duas últimas ainda não mencionadas na literatura química. Os resultados foram acompanhados por análise hierárquica de grupos, verificando-se a formação de grupos indicativos da grande similaridade entre óleos essenciais dos espécimes masculinos e femininos de todas as cinco espécies. O estudo reafirma o valor das observações de campo na pesquisa de produtos naturais, e aponta fatores genéticos e ecológicos como principais responsáveis por diferenças no metabolismo secundário das plantas estudadas.In the few studies published on essential oils from female and male specimens of Baccharis species, strong differences between the compositions of both samples were always found. The experiments conducted in this study make use of strategies to minimize the interference from genetic and environmental factors. Essential oils from leaves of female and male specimens of five Baccharis species were investigated by gas chromatography-mass spectrometry plus flame ionization detector (GC-MS-FID): B. caprariaefolia and B. dracunculifolia, which have been previously studied with similar aims; and B. coridifolia, B. semiserrata var. elaegnoides and B. pentaptera, the latter two not yet mentioned in the literature. The results were followed by hierarchical cluster analysis, verifying the formation of groups indicative of the great similarity of essential oils from male and female specimens of all five species. The study reinforces the value of field observation in natural product research and points genetic and ecological factors as main responsible for differences in the secondary metabolites of the studied plants.Keywords: Baccharis species, male and female specimens, essential oils J. Braz. Chem. Soc. 1042 Chemical Composition Similarity between Essential Oils Isolated from Male and Female Baccharis Species IntroductionReview articles show that the research regarding the chemical compounds produced by about 120 species from the Baccharis L. (Asteraceae) genus resulted mainly in the isolation of diterpenes and flavonoids.1,2 On the other hand, the available data show that about 52 species from the Baccharis genus have been characterized on the basis of the chemical composition of their essential oils. The seasonal variability of the chemical composition of essential oils from some Baccharis species cultivate...

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“…A espécie é endêmica do Brasil e em Mucugê foi coletada em mata de encosta, brejo, cerrado e campos gerais. Baccharis crispa é um arbusto resinoso, com ramos trialados, planos ou ondulados, folhas escamiformes com lâmina foliar triangular e base truncada, séssil, capítulos sésseis arranjados em ramos espiciformes e cipsela cilíndrica, 8-16 costada (Heiden et al 2009;Schneider 2009 Baccharis retusa distingue-se pelo hábito arbustivo, lâmina foliar coriácea, espatulada a oblanceolada, ápice arredondado a obtuso, 5-12 denteadas, base cuneada, viscosa, capítulos paniculados, subsésseis e arranjados no ápice dos ramos. A espécie é endêmica do Brasil e em Mucugê foi coletada em ambientes de campo rupestre e campos gerais.…”

Section: Astereae Cassunclassified

“…A espécie é endêmica do Brasil e em Mucugê foi coletada em ambientes de campo rupestre e campos gerais. Baccharis sagittalis pode ser reconhecida pelo hábito subarbustivo, ramos alados, folhas reduzidas, lâmina foliar oblongo-sagitada, base arredondada a sagitada, subséssil, capítulos sésseis, capitulescência espiciforme congesta e cipsela oblongo-obcônica (Heiden et al 2009;Schneider 2009 11.1.14. Baccharis serrulata (Lam.)…”

Section: Astereae Cassunclassified

Asteraceae no Município de Mucugê, Chapada Diamantina, Bahia, Brasil

et al. 2016

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ResumoLevantamentos florísticos de Asteraceae na Cadeia do Espinhaço têm confirmado uma significante riqueza de espécies e de endemismos dessa família para as vegetações campestres. O presente trabalho tem como objetivo realizar um inventário florístico de Asteraceae no município de Mucugê, Bahia, oferecendo subsídios para o reconhecimento da família na região. As coletas têm sido realizadas na região há pelo menos uma década e meia cobrindo grande parte da área do Município. Foram estudados também os materiais provenientes dos herbários ALCB, CEPEC, HRB, HUEFS, MBM, NYBG, RB, SP, SPF e UB. A família Asteraceae está representada em Mucugê por 18 tribos, 78 gêneros e 167 espécies. As tribos com maior número de espécies são Eupatorieae (49 spp.), Vernonieae (46 spp.), Astereae (18 spp.) e Heliantheae (11 spp.). Dos gêneros registrados, cinco são monoespecíficos (Pseudostifftia, Platypodanthera, Bahianthus, Conocliniopsis e Prolobus) e cinco são endêmicos da Bahia (Pseudostifftia, Stylotrichium, Lasiolaena e Semiria). Dentre os gêneros com maior riqueza, destacam-se Baccharis (17 spp.), Lychnophora (11 spp.), Mikania (10 spp.), Lepidaploa e Lessingianthus (7 spp.) cada. São apresentadas chaves de identificação para as tribos, gêneros e espécies, comentários taxonômicos e distribuição geográfica para cada táxon, além de ilustrações e fotos. Palavras-chave: Cadeia do Espinhaço, campo rupestre, florística, endemismo. AbstractFloristic surveys of the Asteraceae in the Espinhaço Range have showed a significant species richness and endemisms in this family for the grassland vegetation. Thus, this study aims to survey the floristic inventory of the Asteraceae in the municipality of Mucugê, Bahia, providing subsidies for an updated taxonomic recognition of the family in the region. Field collections have been conducted for at least a decade and a half covering much of the area. We also analyzed the material from the herbaria ALCB, CEPEC, HRB, HUEFS, MBM, NYBG, RB, SP, SPF and UB. Asteraceae is represented in Mucugê by 18 tribes, 78 genera and 167 species. The tribes with the greatest number of species are Eupatorieae (49 spp.), Vernonieae (46 spp.), Astereae (18 spp.) and Heliantheae (11 spp.). Five of the genera are monospecific (Pseudostifftia, Platypodanthera, Bahianthus, Conocliniopsis e Prolobus) and five are endemic to Bahia (Pseudostifftia, Stylotrichium, Lasiolaena and Semiria). The genera with highest number of species are Baccharis (17 spp.), Lychnophora (11 spp.), Mikania (10 spp.), Lepidaploa and Lessingianthus (7 spp.) each. Identification keys to the tribes, genera and species, followed by taxonomic comments and geographic distribution for each taxon, and illustrations and images are presented.

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Baccharis sect. Caulopterae (Asteraceae, Astereae) no Rio Grande do Sul, Brasil

Cited by 35 publications

References 9 publications

Aquatic macrophytes of Northeastern Brazil: checklist, richness, distribution and life forms [with erratum]

Aquatic macrophytes of Northeastern Brazil: checklist, richness, distribution and life forms [with erratum]

Chemical composition similarity between the essential oils isolated from male and female specimens of each five Baccharis species

Asteraceae no Município de Mucugê, Chapada Diamantina, Bahia, Brasil

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