Personal information

Lamiaceae, Bixaceae, Plant Systematics, Plant Taxonomy, Neotropical Flora

Activities

Employment (1)

Universidade Federal do Espírito Santo: São Mateus, Espírito Santo, BR

2022-04-20 to present | Professor and Researcher (Departamento de Ciências Agrárias e Biológicas)
Employment
Source: Self-asserted source
Guilherme Medeiros Antar

Education and qualifications (1)

Universidade de São Paulo: Sao Paulo, SP, BR

2016-08-17 to 2021-02-09 | Ph.D. (Botany)
Education
Source: Self-asserted source
Guilherme Medeiros Antar

Works (50 of 72)

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Page 1 of 2

In Vitro and In Vivo Evaluation of the Antischistosomal Activity of Polygodial and 9-Deoxymuzigadial Isolated from Drimys brasiliensis Branches

Molecules
2025-01-11 | Journal article
Contributors: Eric Umehara; Rayssa A. Cajas; Gabriel B. Conceição; Guilherme M. Antar; Adriano D. Andricopulo; Josué de Moraes; João Henrique G. Lago
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Stachytarpheta eimeariae and S. praetermissa (Verbenaceae): two new species and an updated identification key to the Radlkoferiana group, endemic to the Chapada Diamantina (Bahia, Brazil)

Kew Bulletin
2024-12 | Journal article
Contributors: Ana Maria Giulietti-Harley; Raymond Mervyn Harley; Guilherme Medeiros Antar; Lucas Cardoso Marinho; Pedro Henrique Cardoso
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Roquea, a new genus of Lychnophorinae (Vernonieae, Asteraceae) from Brazil and its phylogenetic placement

Phytotaxa
2024-12-03 | Journal article
Contributors: BENOÎT LOEUILLE; ROBERTO BAPTISTA PEREIRA ALMEIDA; CAROLINA M. SINISCALCHI; MAKELI G. LUSA; GUILHERME MEDEIROS ANTAR
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Floristic survey of vascular plants of the Parque Estadual da Pedra Selada, Rio de Janeiro, Brazil

Biodiversity Data Journal
2024-10-04 | Journal article
Contributors: Isabela Waga; Andrea Costa; Claudine Mynssen; Eduardo Fernandez; Elsie Guimarães; Fernanda Saleme; George Queiroz; Guilherme Antar; Haroldo Lima; Hemily Marques et al.
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Eplingiella sanoi sp. nov. (Hyptidinae-Lamiaceae): supports the urgent need for campos rupestres conservation in the Serra do Espinhaço Septentrional, Minas Gerais state, Brazil

Webbia
2024-09-03 | Journal article
Contributors: Guilherme Medeiros Antar; Raymond Mervyn Harley; José Floriano Barêa Pastore; Marcio Verdi; Arthur De Souza Soares
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Nomenclatural and taxonomic notes on Salvia sections Nobiles and Angulatae (Lamiaceae: Mentheae), with updated identification keys for these sections in Brazil

Kew Bulletin
2024-06 | Journal article
Contributors: Aron Barbosa Oliveira; Guilherme Medeiros Antar; Marcelo Trovó
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Piriqueta velutina (Turneraceae, Passifloraceae s.l.): a new endangered species from the Brazilian Cerrado

Kew Bulletin
2024-06 | Journal article
Contributors: Lamarck Rocha; Maria Mercedes Arbo; Guilherme Medeiros Antar; Fabiane Rabelo da Costa Batista
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Flora of Espírito Santo, Brazil: Bixaceae

Rodriguésia
2023 | Journal article
Contributors: Guilherme de Medeiros Antar; Elton John de Lírio; Roberto Baptista Pereira Almeida; Paulo Takeo Sano
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Evaluation of Anti-Trypanosoma cruzi Activity of Chemical Constituents from Baccharis sphenophylla Isolated Using High-Performance Countercurrent Chromatography

Molecules
2023-12-30 | Journal article
Contributors: Matheus L. Silva; Felipe S. Sales; Erica V. C. Levatti; Guilherme M. Antar; Andre G. Tempone; João Henrique G. Lago; Gerold Jerz
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A tribute to whom defend the forest: Hyptidendron dorothyanum (Lamiaceae: Hyptidinae), a new species from the Amazonian domain

Nordic Journal of Botany
2023-05 | Journal article
Contributors: Guilherme Medeiros Antar; Raymond Mervyn Harley; José Floriano Barêa Pastore; Paulo Takeo Sano
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Floristic survey of vascular plants of a poorly known area in the Brazilian Atlantic Forest (Flona do Rio Preto, Espírito Santo)

Biodiversity Data Journal
2022 | Journal article
EID:

2-s2.0-85124738510

Part of ISSN: 13142828 13142836
Contributors: Alves-Araújo, A.; Moreira, M.M.; Carrijo, T.T.; Lohmann, L.G.; Lobão, A.Q.; Scheidegger, A.F.; Firmino, A.D.; Silva, A.V.D.M.; Nepomuceno, Á.; Tuler, A.C. et al.
Source: Self-asserted source
Guilherme Medeiros Antar via Scopus - Elsevier

Leaf venation reveals its potential for the taxonomy of Hyptidendron Harley (Lamiaceae - Hyptidinae) and supports the recognition of a new species, Hyptidendron cerradoense

Acta Botanica Brasilica
2022 | Journal article
Contributors: Guilherme Medeiros Antar; Raymond Mervyn Harley; José Floriano Barêa Pastore; Diego Demarco; Paulo Takeo Sano
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Mentheae (Nepetoideae - Lamiaceae) from the Itatiaia National Park, Brazil

Rodriguésia
2022 | Journal article
Contributors: Aron Barbosa Oliveira; Guilherme Medeiros Antar; Marcelo Trovó
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Stigma shape shifting in sages (Salvia: Lamiaceae): hummingbirds guided the evolution of New World floral features

Botanical Journal of the Linnean Society
2022 | Journal article
EID:

2-s2.0-85120891297

Part of ISSN: 10958339 00244074
Contributors: Kriebel, R.; Drew, B.T.; González-Gallegos, J.G.; Celep, F.; Antar, G.M.; Pastore, J.F.B.; Uría, R.; Sytsma, K.J.
Source: Self-asserted source
Guilherme Medeiros Antar via Scopus - Elsevier

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

Acta Botanica Brasilica
2022 | Journal article
Contributors: Caetano Troncoso Oliveira; Guilherme Medeiros Antar; Paulo Minatel Gonella; José Rubens Pirani
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Typifications and notes on Hyptidinae (Lamiaceae) described by Pilger from Mato Grosso state, Brazil

Feddes Repertorium
2022 | Journal article
EID:

2-s2.0-85113518361

Part of ISSN: 1522239X 00148962
Contributors: Antar, G.M.; Harley, R.M.; Soares, A.D.S.; Buchoski, M.G.; Pastore, J.F.B.; Sano, P.T.
Source: Self-asserted source
Guilherme Medeiros Antar via Scopus - Elsevier

Recommendations for typification of Vellozo’s names from Cunha, São Paulo (Brazil): Eriocaulaceae, Polygalaceae, and Violaceae

Brittonia
2022-12 | Journal article
Contributors: José Floriano Barêa Pastore; Marcelo Trovó; Michelle Mota; Guilherme Medeiros Antar; Adriano da Silva De Cicco Maruyama; Juliana de Paula-Souza
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Vitex pomerana (Lamiaceae; Viticoideae), a new unifoliolate species from the Brazilian Atlantic Forest

Kew Bulletin
2022-12 | Journal article
Contributors: Guilherme Medeiros Antar; Elton John de Lírio; Joelcio Freitas; Claudio Nicoletti de Fraga
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Flora da Serra do Cipó, Minas Gerais: Caricaceae

Boletim de Botânica
2022-12-21 | Journal article
Contributors: Amanda Bezerra da Silva; Daniel de Menezes Mendes; Guilherme Medeiros Antar
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Flora da Serra do Cipó, Minas Gerais: Hydroleaceae

Boletim de Botânica
2022-12-21 | Journal article
Contributors: Danilo Alvarenga Zavatin; Roberto Baptista Pereira Almeida; Guilherme Medeiros Antar
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Lychnophora pseudovillosissima (Asteraceae: Vernonieae: Lychnophorinae), a new species restricted to Minas Gerais, Brazil

Webbia
2022-12-15 | Journal article
Contributors: Guilherme Medeiros Antar; Marcelo Monge; Jimi Naoki Nakajima; Benoit Loeuille
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Novelties in Compositae from Vellozo’s Florae Fluminensis

Phytotaxa
2022-12-02 | Journal article
Contributors: ALINE SITOWSKI; ARISTÔNIO MAGALHÃES TELES; GUILHERME MEDEIROS ANTAR; JOSÉ FLORIANO BARÊA PASTORE
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Herb–subshrub diversity in open savanna sites with distinct fire regimes in the Jalapão region, Brazil

Journal of Tropical Ecology
2022-11 | Journal article
Contributors: Guilherme Medeiros Antar; Vânia Regina Pivello; Caian Souza Gerolamo; Anselmo Nogueira; Paulo Takeo Sano
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Nomenclatural notes on Menthinae (Mentheae — Lamiaceae) native to Brazil

Brittonia
2022-11-28 | Journal article
Contributors: Aron Barbosa Oliveira; Guilherme Medeiros Antar; Marcelo Trovó
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Two new Brazilian species of Verbenaceae from the Espinhaço Range: Stachytarpheta olearyana and S. vianae

Kew Bulletin
2022-09 | Journal article
Contributors: Pedro Henrique Cardoso; Pablo Moroni; Guilherme Medeiros Antar; Luiz Menini Neto; Marcelo Trovó
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Typifications and new synonyms in Stachytarpheta (Verbenaceae) from Brazil

Phytotaxa
2022-08-11 | Journal article
Contributors: PEDRO HENRIQUE CARDOSO; PABLO MORONI; GUILHERME ANTAR; LUIZ MENINI NETO; MARCELO TROVÓ
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Bixa atlantica sp. nov. (Bixaceae), a new species of wild annatto from the Atlantic Forest of eastern Brazil

Phytotaxa
2022-04-29 | Journal article
Contributors: GUILHERME MEDEIROS ANTAR; ELTON JOHN DE LÍRIO; ROBERTO BAPTISTA PEREIRA ALMEIDA; PAULO TAKEO SANO
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Tracking Brazil’s Colonization Footprints: First record of the tea plant (Camellia sinensis (L.) Kuntze – Theaceae) naturalized in the Atlantic Forest Hotspot

Webbia
2022-04-20 | Journal article
Contributors: Guilherme Medeiros Antar; Roberto Baptista Pereira Almeida; Marco Antonio Palomares Accardo-Filho; Rafael Gomes Barbosa-Silva
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Antitrypanosomal Lactones from Nectandra barbellata

Journal of Natural Products
2021 | Journal article
EID:

2-s2.0-85105029110

Part of ISSN: 15206025 01633864
Contributors: Londero, V.S.; Costa-Silva, T.A.; Antar, G.M.; Baitello, J.B.; De Oliveira, L.V.F.; Camilo, F.F.; Batista, A.N.L.; Batista, J.M.; Tempone, A.G.; Lago, J.H.G.
Source: Self-asserted source
Guilherme Medeiros Antar via Scopus - Elsevier

Aporphine Alkaloids from Ocotea puberula with Anti-Trypanosoma Cruzi Potential – Activity of Dicentrine-β-N-Oxide in the Plasma Membrane Electric Potentials

Chemistry and Biodiversity
2021 | Journal article
EID:

2-s2.0-85101815220

Part of ISSN: 16121880 16121872
Contributors: Barbosa, H.; Costa-Silva, T.A.; Alves Conserva, G.A.; Araujo, A.J.; Lordello, A.L.L.; Antar, G.M.; Amaral, M.; Soares, M.G.; Tempone, A.G.; Lago, J.H.G.
Source: Self-asserted source
Guilherme Medeiros Antar via Scopus - Elsevier

Brazilian Flora 2020: Leveraging the power of a collaborative scientific network

Taxon
2021 | Journal article
EID:

2-s2.0-85121596781

Part of ISSN: 19968175 00400262
Contributors: Gomes-da-Silva, J.; Filardi, F.L.R.; Barbosa, M.R.V.; Baumgratz, J.F.A.; Bicudo, C.E.M.; Cavalcanti, T.B.; Coelho, M.A.N.; Costa, A.F.; Costa, D.P.; Dalcin, E.C. et al.
Source: Self-asserted source
Guilherme Medeiros Antar via Scopus - Elsevier

Chemical Constituents from Aerial Parts of Baccharis sphenophylla and Effects against Intracellular Forms of Trypanosoma cruzi

Chemistry and Biodiversity
2021 | Journal article
EID:

2-s2.0-85111736020

Part of ISSN: 16121880 16121872
Contributors: Silva, M.L.; Costa-Silva, T.A.; Antar, G.M.; Tempone, A.G.; Lago, J.H.G.
Source: Self-asserted source
Guilherme Medeiros Antar via Scopus - Elsevier

Ent-kaurane diterpenes isolated from n-hexane extract of Baccharis sphenophylla by bioactivity-guided fractionation target the acidocalcisomes in Trypanosoma cruzi

Phytomedicine
2021 | Journal article
EID:

2-s2.0-85116580190

Part of ISSN: 1618095X 09447113
Contributors: da Costa-Silva, T.A.; Silva, M.L.; Antar, G.M.; Tempone, A.G.; Lago, J.H.G.
Source: Self-asserted source
Guilherme Medeiros Antar via Scopus - Elsevier

Erratum: Beyond forests in the Amazon: Biogeography and floristic relationships of the Amazonian savannas (Botanical Journal of the Linnean Society DOI: 10.1093/botlinnean/boaa025)

Botanical Journal of the Linnean Society
2021 | Journal article
EID:

2-s2.0-85105664681

Part of ISSN: 10958339 00244074
Contributors: Devecchi, M.F.; Lovo, J.; Moro, M.F.; Andrino, C.O.; Barbosa-Silva, R.G.; Viana, P.L.; Giulietti, A.; Antar, G.; Watanabe, M.T.C.; Zappi, D.C.
Source: Self-asserted source
Guilherme Medeiros Antar via Scopus - Elsevier

Hyptidendron pulcherrimum Antar & Harley, sp. nov. (Hyptidinae, Lamiaceae), a new narrowly endemic species from Minas Gerais, Brazil,Hyptidendron pulcherrimum Antar & Harley, sp. nov. (Hyptidinae, Lamiaceae), une espèce nouvelle microendémique du Minas Gerais, au Brésil

Adansonia
2021 | Journal article
EID:

2-s2.0-85100296773

Part of ISSN: 12808571
Contributors: Antar, G.M.; Harley, R.M.; Barêa Pastore, J.F.; Gonella, P.M.; Sano, P.T.
Source: Self-asserted source
Guilherme Medeiros Antar via Scopus - Elsevier

New records in Brazil reveal a disjunct distribution for Cordia weddellii (Cordiaceae)

Darwiniana, nueva serie
2021 | Journal article
Contributors: José Iranildo Miranda de Melo; Guilherme M. Antar; Luan Pedro da Silva; Thaynara de Sousa Silva
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Novelties in lepidaploinae (Asteraceae, vernonieae) from the easternmost campos rupestres of minas gerais, Brazil: Two new species and a range expansion

Plant Ecology and Evolution
2021 | Journal article
EID:

2-s2.0-85104154436

Part of ISSN: 20323921 20323913
Contributors: Antar, G.M.; Siniscalchi, C.M.; Gonella, P.M.; Monge, M.; Loeuille, B.
Source: Self-asserted source
Guilherme Medeiros Antar via Scopus - Elsevier

Simplified Derivatives of Dibenzylbutyrolactone Lignans from Hydrocotyle bonariensis as Antitrypanosomal Candidates

Chemistry and Biodiversity
2021 | Journal article
EID:

2-s2.0-85115829204

Part of ISSN: 16121880 16121872
Contributors: Souza, D.C.S.; Costa-Silva, T.A.; Morais, T.R.; Brito, J.R.; Ferreira, E.A.; Antar, G.M.; Sartorelli, P.; Tempone, A.G.; Lago, J.H.G.
Source: Self-asserted source
Guilherme Medeiros Antar via Scopus - Elsevier

Mikania mellosilvae sp. nov. (Asteraceae: Eupatorieae) from the Atlantic Forest of Brazil and lectotypification of Mikania candolleana

Nordic Journal of Botany
2021-12 | Journal article
Contributors: Guilherme Medeiros Antar; Caetano Troncoso Oliveira; José Rubens Pirani
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Novelties in Dyckia (Pitcairnioideae ‐ Bromeliaceae) from the South America dry diagonal: Two new species, a new combination and a new name

Feddes Repertorium
2021-09 | Journal article
Contributors: Guilherme Medeiros Antar; Jair Eustáquio Quintino Faria; Priscila Oliveira Rosa; Augusto Cesar Alencar Soares; Rafaela Campostrini Forzza
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Two new endangered species of Polygala series Trichospermae (Polygalaceae), endemic to the Cerrado domain, Tocantins State, Brazil

European Journal of Taxonomy
2021-08-16 | Journal article
Contributors: José Floriano Barêa Pastore; Guilherme Medeiros Antar
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Phytotoxicity of Schiekia timida Seed Extracts, a Mixture of Phenylphenalenones

Molecules
2021-07-10 | Journal article
Contributors: Fernanda Maria Marins Ocampos; Ana Julia Borim de Souza; Guilherme Medeiros Antar; Felipe Christoff Wouters; Luiz Alberto Colnago
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<p><strong><em>Hyptis lavoisierifolia</em>, a new species from the noteworthy <em>Hyptis</em> subsect. <em>Pachyphyllae</em> (Lamiaceae—Hyptidinae) endemic to Chapada dos Veadeiros region, Goiás, Brazil</strong></p>

Phytotaxa
2021-06-09 | Journal article
Contributors: ARTHUR DE SOUZA SOARES; JOSÉ FLORIANO BARÊA PASTORE; GUILHERME MEDEIROS ANTAR; RAYMOND MERVYN HARLEY
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<p><strong>Lectotypification and notes on the distribution of the giant herb <em>Phenakospermum guyannense</em> (Rich.) Miq. (Strelitziaceae)</strong></p>

Phytotaxa
2021-03-23 | Journal article
Contributors: ROBERTO BAPTISTA PEREIRA ALMEIDA; GUILHERME MEDEIROS ANTAR; ALESSANDRO WAGNER COELHO FERREIRA; WAGNER RIBEIRO DA SILVA JUNIOR; MIGUEL SENA DE OLIVEIRA; RAYSA VALÉRIA CARVALHO SARAIVA
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15β-Senecioyl-oxy- ent-kaur-16-en-19-oic Acid, a Diterpene Isolated from Baccharis lateralis, as Promising Oral Compound for the Treatment of Schistosomiasis

Journal of Natural Products
2020 | Journal article
EID:

2-s2.0-85097905332

Part of ISSN: 15206025 01633864
Contributors: Sessa, D.P.; Mengarda, A.C.; Simplicio, P.E.; Antar, G.M.; Lago, J.H.G.; De Moraes, J.
Source: Self-asserted source
Guilherme Medeiros Antar via Scopus - Elsevier

A list of land plants of Parque Nacional do Caparaó, Brazil, highlights the presence of sampling gaps within this protected area

Biodiversity Data Journal
2020 | Journal article
EID:

2-s2.0-85099943023

Part of ISSN: 13142828
Contributors: Moreira, M.M.; Carrijo, T.T.; Alves-Araújo, A.G.; Rapini, A.; Salino, A.; Firmino, A.D.; Chagas, A.P.; Versiane, A.F.A.; Amorim, A.M.A.; da Silva, A.V.S. et al.
Source: Self-asserted source
Guilherme Medeiros Antar via Scopus - Elsevier

Anti-Trypanosoma cruzi activity of costic acid isolated from Nectandra barbellata (Lauraceae) is associated with alterations in plasma membrane electric and mitochondrial membrane potentials

Bioorganic Chemistry
2020 | Journal article
EID:

2-s2.0-85076881963

Part of ISSN: 10902120 00452068
Contributors: Londero, V.S.; Costa-Silva, T.A.; Tempone, A.G.; Namiyama, G.M.; Thevenard, F.; Antar, G.M.; Baitello, J.B.; Lago, J.H.G.
Source: Self-asserted source
Guilherme Medeiros Antar via Scopus - Elsevier

Antiparasitic activity of piplartine (piperlongumine) in a mouse model of schistosomiasis

Acta Tropica
2020 | Journal article
EID:

2-s2.0-85079431930

Part of ISSN: 18736254 0001706X
Contributors: Mengarda, A.C.; Mendonça, P.S.; Morais, C.S.; Cogo, R.M.; Mazloum, S.F.; Salvadori, M.C.; Teixeira, F.S.; Morais, T.R.; Antar, G.M.; Lago, J.H.G. et al.
Source: Self-asserted source
Guilherme Medeiros Antar via Scopus - Elsevier

Interaction of dicentrinone, an antitrypanosomal aporphine alkaloid isolated from Ocotea puberula (Lauraceae), in cell membrane models at the air-water interface

Bioorganic Chemistry
2020 | Journal article
EID:

2-s2.0-85086149092

Part of ISSN: 10902120 00452068
Contributors: Barbosa, H.; da Silva, R.L.C.G.; Costa-Silva, T.A.; Tempone, A.G.; Antar, G.M.; Lago, J.H.G.; Caseli, L.
Source: Self-asserted source
Guilherme Medeiros Antar via Scopus - Elsevier

<p><strong>Description <em>vs</em> deforestation: <em>Couepia</em> <em>brevistaminea</em> (Chrysobalanaceae), a new species on the frontier of agricultural expansion in the Brazilian savanna</strong></p>

Phytotaxa
2020-11-10 | Journal article
Contributors: RAFAEL GOMES BARBOSA-SILVA; GUILHERME MEDEIROS ANTAR
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Items per page:
Page 1 of 2

Peer review (6 reviews for 3 publications/grants)

Review activity for Kew bulletin. (2)
Review activity for PloS one. (2)
Review activity for Revista Brasileira de Botânica. (2)