Nuevas Secciones En<i>Baccharis</i>(Asteraceae, Astereae) de América Del Sur<sup>1</sup>

Giuliano, Daniel A.; Freire, Susana E.

doi:10.3417/2009096

Cited by 13 publications

(9 citation statements)

References 3 publications

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“…M€ uller (¼ Heterothalamus psiadioides Less.) (Giuliano & Freire 2011) is a shrub native of southern Brazil and Uruguay and is known as 'alecrim-do-campo', 'vassoura' or 'erva-formiga'. In south Brazilian folk medicine, B. psiadioides has been used as an antipyretic, an antidote for snake bites, an anti-inflammatory agent (Correa 1984) and for its aromatic and excitant properties (Biavatti et al 2007).…”

Section: Introductionmentioning

confidence: 99%

Antimicrobial and antibiofilm activity ofBaccharis psiadioidesessential oil against antibiotic-resistantEnterococcus faecalisstrains

Negreiros

Pawlowski

Zini

et al. 2016

Pharmaceutical Biology

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Section: Introductionmentioning

confidence: 99%

Antimicrobial and antibiofilm activity ofBaccharis psiadioidesessential oil against antibiotic-resistantEnterococcus faecalisstrains

Negreiros

Pawlowski

Zini

et al. 2016

Pharmaceutical Biology

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“…Tarchonanthoides is characterized by ferrugineous indumentum, petiolate leaves, angulated, (3) 4-5-ribbed cypselae and pappus of pistillate flowers persistent, fused in a basal ring, not elongated at cypsela maturity. The subgenus comprises only two species, both endemic in southern Brazil (additional comments see Giuliano & Freire 2011).…”

Section: Infragenerical Treatmentmentioning

confidence: 99%

“…The traditional segregated genus Heterothalamus, and also• the probably related Heterothalamulopsis were included without an obvious reason under the subgenus Molina (Müller, 2006: 217-218). Recently, Giuliano & Freire (2011) have accepted the criteria ofMüller and proposed several new sections and new status under Baccharis, mainly of them to include Müller's informal groups.…”

Section: Introductionmentioning

confidence: 99%

Studies in Baccharidinae (Asteraceae: Astereae). I: Lanugothamnus a new genus from South America

Deble

2014

Balduinia

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It is described a new genus of Asteraceae, named Lanugothamnus, to include eighteen species and one subespecies of Baccharis before placed in the subgenus Tarchonanthoides. The genus Lanugothamnus has discussed its infragenerical treatment, being segregated in four subgenera: Lanugothamnus, Toxicothamnus, Curitybenses, and Tarchonanthoides. The subgenus Toxicothamnus is a taxonomic novelty, while the subgenera Curitybenses and Tarchonanthoides are based in Baccharis sect. Curitybenses, and Baccharis subg. Tarchonanthoides, respectively. Two new sections are described: Sericicarpa and Pluricephala. The former belongs to subgenus Lanugothamnus, while the later belongs to subgenus Toxicothamnus. Furthermore, two new species, named Lanugothamnus Anabelae and L. pluricapitulatus are described, illustrated and have their taxonomic affinities discussed. Lectotypes are proposed to names Baccharis artemisioides, B. patens, and B. squarrosa. Baccharis multipaniculata is placed in synonymy with Lanugothamnus scabrifolius. A key to segregate the subgenera and species of Lanugothamnus is given, and the appropriate new combinations are made.

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“…Both species coexist geographically, [2,3] have a very similar morphological appearance, and both are popularly known in Uruguay as ‘ chilca blanca ’ (white ‘ chilca ’) [5,6] . Under field conditions, these facts lead to frequent misidentification by non‐taxonomists, despite being placed in different Baccharis L. infra‐generic sections [7] . As an example of the morphological similarity that exists between those species, currently one of the accepted synonyms from B. microdonta is B. dracunculifolia var.…”

Section: Introductionmentioning

confidence: 99%

Relationship between Baccharis dracunculifolia DC. and B. microdonta DC. (Asteraceae) by Their Different Seasonal Volatile Expression

Minteguiaga

González

Catalán

et al. 2021

Chemistry & Biodiversity

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Baccharis dracunculifolia DC. and Baccharis microdonta DC. (Asteraceae) are woody species morphologically similar growing in Uruguay, where not taxonomists people often confuse them in field conditions. As the essential oil of B. dracunculifolia (‘vassoura’ oil) is highly prized by the flavor and fragrance industry, the correct differentiation of the two species is a key factor in exploiting them profitably and reasonably. To differentiate both Baccharis species, in this work their volatile expression profiles were studied as an alternative tool to determine authenticity and quality. Volatile organic compounds (VOCs) were monthly extracted during an entire year from aerial parts of wild populations by simultaneous distillation extraction (SDE), and studied by gas chromatography/mass spectrometry (GC/MS; identification) and conventional gas chromatography (GC‐FID; component abundances determination). Enantioselective gas chromatography/mass spectrometry (Es‐GC/MS) was applied in the search of parameters able to ensure genuineness of each species extract. Qualitative VOCs profiles were found to be similar for both species, being β‐pinene, limonene, spathulenol, caryophyllene oxide, and viridiflorol the main components. However, the abundance of those VOCs were two to ten times higher in B. dracunculifolia than in B. microdonta during the year of study. These Baccharis spp. showed species‐specific patterns of VOCs expression according to the seasonality, and interestingly, oxygenated compounds (trans‐pinocarveol and myrtenal) increased their abundances at full‐flowering stages. The enantiomeric distribution of selected monoterpenes (α‐ and β‐pinenes, limonene, linalool, terpinen‐4‐ol, and α‐terpineol) presented differential values for both Baccharis spp., meaning that Es‐GC might be a useful tool for differentiating chemically both species in Uruguay for genuineness determination purposes.

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Nuevas Secciones EnBaccharis(Asteraceae, Astereae) de América Del Sur¹

Cited by 13 publications

References 3 publications

Antimicrobial and antibiofilm activity ofBaccharis psiadioidesessential oil against antibiotic-resistantEnterococcus faecalisstrains

Antimicrobial and antibiofilm activity ofBaccharis psiadioidesessential oil against antibiotic-resistantEnterococcus faecalisstrains

Studies in Baccharidinae (Asteraceae: Astereae). I: Lanugothamnus a new genus from South America

Relationship between Baccharis dracunculifolia DC. and B. microdonta DC. (Asteraceae) by Their Different Seasonal Volatile Expression

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Nuevas Secciones EnBaccharis(Asteraceae, Astereae) de América Del Sur1

Cited by 13 publications

References 3 publications

Antimicrobial and antibiofilm activity ofBaccharis psiadioidesessential oil against antibiotic-resistantEnterococcus faecalisstrains

Antimicrobial and antibiofilm activity ofBaccharis psiadioidesessential oil against antibiotic-resistantEnterococcus faecalisstrains

Studies in Baccharidinae (Asteraceae: Astereae). I: Lanugothamnus a new genus from South America

Relationship between Baccharis dracunculifolia DC. and B. microdonta DC. (Asteraceae) by Their Different Seasonal Volatile Expression

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Nuevas Secciones EnBaccharis(Asteraceae, Astereae) de América Del Sur¹