Rodriguésia 72: e00622019. 2021 http://rodriguesia.jbrj.gov.br DOI: http://doi.org/10.1590/2175-7860202172035 Abstract In this paper we present an overview of the abstracts, scientific and social programs, field trips, and achievements in terms of participant number, represented countries, sponsorships, and themes treated during the Sixth International Conference on the Comparative Biology of Monocotyledons that took place in Natal, Brazil, October 7th -12th 2018. Some comments received by the organizers and a few suggestions for organizers of the next meeting, in Costa Rica, are also provided. The conference’s complete abstract book was published and provide additional information. Key words: Araceae, botany, Bromeliaceae, monocots, Poaceae. Point of View An overview of the Sixth International Conference on the Comparative Biology of Monocotyledons - Monocots VI - Natal, Brazil, 2018 Leonardo M. Versieux1,20,38, Alice Calvente1,21, Fernanda Antunes Carvalho1,2, Carlos Roberto Fonseca1,22, Juliana Espada Lichston1,23, Eduardo Voigt1,24, Anderson Lopes Fontes1,25, Alan Roque1,26, Joseph Hill Williams1,3, Reyjane Patrícia de Oliveira4,27, Pedro Lage Viana5, Helenice Mercier6, Clarisse Palma-Silva7, Tânia Wendt 8,28, Lívia Godinho Temponi 9, Ivanilza Moreira de Andrade10, Aline Oriani11,29, Thales D. Leandro11,30, Edlley Max Pessoa12, Adriana Pinheiro Martinelli13, Thiago André14, Ana Maria Benko- Iseppon15,31, Cássio van den Berg4,32, Cynthia Fernandes Pinto da Luz16,33, Francisco Prosdocimi 8,34, Jomar G. Jardim17, Marccus Alves15,35, Maria das Graças Lapa Wanderley16,36, Rafaela Campostrini Forzza18, Vera Lucia Scatena11,37 & Lynn G. Clark19 1 Universidade Federal do Rio Grande do Norte, Depto. Botânica e Zoologia, Natal, RN, Brazil. 2 Universidade Federal de Minas Gerais, Depto. Biologia Geral, Belo Horizonte, MG, Brazil. ORCID: . 3 University of Tennessee, Department of Ecology and Evolutionary Biology, Knoxville, Tennessee, U.S.A. ORCID: . 4 Universidade Estadual de Feira de Santana, Depto. Ciências Biológicas, Feira de Santana, BA, Brazil. 5 Museu Paraense Emílio Goeldi, Belém, PA, Brazil. ORCID: . 6 Universidade de São Paulo, Depto. Botânica, São Paulo, SP, Brazil. ORCID: . 7 Universidade Estadual de Campinas, Depto. Biologia Vegetal, Campinas, SP, Brazil. ORCID: . 8 Universidade Federal do Rio de Janeiro, Centro de Ciências da Saúde, Rio de Janeiro, RJ, Brazil. 9 Universidade Estadual do Oeste do Paraná, campus Cascavel, Cascavel, PR, Brazil. ORCID: . 10 Universidade Federal do Piauí, campus Ministro Reis Velloso, Parnaíba, PI, Brazil. ORCID: . 11 Universidade Estadual Paulista Júlio de Mesquita Filho - UNESP, Depto. Biodiversidade, Rio Claro, SP, Brazil. 12 Universidade Federal de Mato Grosso, Depto. Botânica e Ecologia, Cuiabá, MT, Brazil. ORCID: . 13 Universidade de São Paulo, Centro de Energia Nuclear na Agricultura, Piracicaba, SP, Brazil. ORCID: . 14 UUniversidade Federal do Oeste do Pará, Inst. Biodiversidade e Florestas, Santarém, PA, Brazil. ORCID: . 15 Universidade Federal de Pernambuco, Centro de Ciências Biológicas, Recife, PE, Brazil. 16 Instituto de Botânica, São Paulo, SP, Brazil. 17 Universidade Federal do Sul da Bahia, Centro de Formação em Ciências Agroflorestais, Itabuna, BA, Brazil. ORCID: . 18 Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, Rio de Janeiro, RJ, Brazil. ORCID: . 19 Iowa State University, Department of Ecology, Evolution, and Organismal Biology, Ames, Iowa, U.S.A. ORCID: . 20 ORCID: . 21 ORCID: . 22 ORCID: .23 ORCID: . 24 ORCID: .25 ORCID: .26 ORCID: .27 ORCID: . 28 ORCID: . 29 ORCID: . 30 ORCID: . 31 ORCID: . 32 ORCID: . 33 ORCID: . 34 ORCID: . 35 ORCID: . 36 ORCID: . 38 Author for correspondence: lversieux@yahoo.com.br Versieux LM et al.2 de 9 Rodriguésia 72: e00622019. 2021 The International Conference on the Comparative Biology of Monocotyledons (Monocots) is one of the most important conferences for botanical science. Although originally focused on systematics and evolution - gathering mostly specialists from the fields of systematics and morphology - the Monocots conference has expanded its coverage and themes, which are currently addressed under a broader scope of comparative biology. Monocot conservation, biotechnology, ecology, and physiology are all growing topics within the conference, which is traditionally held every five years. To date, this conference has been held six times: (i) 1993, Monocotyledon Systematics and Evolution, Royal Botanic Gardens, Kew, England (Rudall et al. 1995); (ii) 1998, International Conference on the Comparative Biology of Monocotyledons - Monocots II, Royal Botanic Gardens Sydney, Australia (Wilson & Morrison 2000); (iii) 2003, Monocots III: The Third International Congress on the Comparative Biology of the Monocotyledons & The Fourth International Symposium on Grass Systematics and Evolution, Rancho Santa Ana Botanic Garden, California, U.S.A. (Columbus et al. 2006, 2007); (iv) 2008, Monocots IV, University of Copenhagen, Denmark (Seberg et al. 2008); and (v) 2013, Monocots V, Fordham University hosted by The New York Botanical Garden, U.S.A. marked the 20th anniversary of the conference series (Campbell et al. 2017). Then, after a significant attendance of Brazilians at the 2008 and 2013 conferences, a Brazilian host city proposal won the voting after the New York meeting. Under the motto “Monocots for all: building the whole from its parts”, the 6th International Conference on the Comparative Biology of Monocotyledons - Monocots VI was held at the Praiamar Natal Hotel & Convention Center, in Natal, Northeastern Brazil, October 7th–12th, 2018. It was the first time that Latin America hosted this important meeting. The Monocots VI conference was organized by a multidisciplinary group of professors, technicians and students from the Universidade Federal do Rio Grande do Norte (UFRN, corresponding to the first nine authors of this paper) and by a Board of Counselors from different universities, botanic gardens, and research institutes in Brazil and abroad, namely: Adriana Pinheiro Martinelli (Plant biotechnology, Universidade de São Paulo, CENA, Piracicaba, São Paulo); Ana Maria Benko Iseppon (Molecular biology, Universidade Federal de Pernambuco); Cássio van den Berg (Plant systematics and genetics, Universidade Estadual de Feira de Santana, Bahia); Cynthia Fernandes Pinto da Luz (Palynology, Instituto de Botânica, São Paulo); Francisco Prosdocimi (Genomics and Bioinformatics, Universidade Federal do Rio de Janeiro); Joseph Williams Jr. (Plant evolutionary biology, The University of Tennessee, U.S.A.); Marccus Vinícius Alves (Plant systematics and floristics, Universidade Federal de Pernambuco); Maria das Graças Lapa Wanderley (Plant systematics and floristics, Instituto de Botânica, São Paulo); Rafaela Campostrini Forzza (Plant systematics and collections, Jardim Botânico do Rio de Janeiro); and Vera Lucia Scatena (Plant morphology, Universidade Estadual Paulista, Rio Claro, São Paulo). Also, 20 students from different levels of study, mostly from the UFRN Herbarium, worked during the event. It was sponsored by the National Council for Scientific and Technological Development (CNPq), National Council for the Improvement of Higher Education (CAPES), and the Bromeliad Society International. Although not a formal sponsor, support from FAPESP (São Paulo Research Foundation) allowed several researchers from São Paulo State to attend the conference. Considering the difficult moment that Brazilian science is going through in terms of funding cuts, the organizing committee approved, upon request, substantial discounts in registration fees for any unemployed professionals attending Resumo Neste artigo nós apresentamos uma visão geral dos resumos, programação científica e social, viagens de campo e informações acerca do número de inscritos, países participantes, patrocínios e temas tratados durante a Sexta Conferência Internacional sobre Biologia Comparada de Monocotiledôneas, realizada em Natal, Brasil, de 7 a 12 de outubro de 2018. Alguns comentários recebidos pelos organizadores e sugestões para os organizadores do próximo Monocots, na Costa Rica, também são fornecidos. Este artigo complementa os dados publicados no livro de resumos, disponível no Repositório Digital da UFRN. Palavras-chave: Araceae, botânica, Bromeliaceae, monocotiledôneas, Poaceae. An overview of Monocots VI 3 de 9 Rodriguésia 72: e00622019. 2021 the conference or graduate students presenting talks in symposia. Students presenting their work in BromEvo 2 (see Versieux et al. 2020) were assisted by a grant from the Bromeliad Society International (BSI), whereas the 7th International Symposium on Grass Systematics and Evolution was fully covered by the CAPES agency. The scientific program was organized into themes and included keynote lectures, master classes, symposium talks, and poster presentations. The local committee was responsible for the conference development and scientific program, headed by Leonardo M. Versieux (chairman), Alice Calvente, Fernanda Antunes Carvalho, Carlos Roberto Fonseca, Eduardo Voigt, and Juliana Espada Lichston; field trip organizers were Jomar Gomes Jardim and Alan Roque; and Anderson Lopes Fontes organized herbarium management and visits. The organizing committee also counted on the experience of senior scientists who were particularly important during fundraising campaigns and in spreading open calls for symposia. The poster session was coordinated by a group of undergraduate and graduate students mostly from UFRN, who also worked in other capacities. Five lunchtime keynote lectures were given during the main event: (i) Monday, October 8, by W. John Kress (Smithsonian Institution, U.S.A.): Monocots in the Anthropocene: species interactions in a rapidly changing world; (ii) Tuesday, October 9, by Lynn G. Clark (Iowa State University, U.S.A. - Special Visiting Researcher PVE/CNPq, Universidade Estadual de Feira de Santana, Bahia): 3D Biology: What we can learn from the “flat” grasses; (iii) Wednesday, October 10, by Christine Bacon (University of Gothenburg, Sweden): The road to evolutionary success: insights from Mauritia flexuosa; (iv) Thursday, October 11, by Gerhard Zotz (University Oldenburg, Germany & Smithsonian Tropical Research Institute, Panama): A Sceptic’s view on scientific “facts” and “concepts”; and (v) Friday, October 12, by Marccus Alves (Universidade Federal de Pernambuco, Brazil) in collaboration with Rafaela Campostrini Forzza (Jardim Botânico do Rio de Janeiro, Brazil): Monocots in the Brazilian Flora 2020: Facilitate access to plant diversity. In addition, there were two Master Classes: (i) Alexandre Antonelli (University of Gothenburg, Sweden, and Royal Botanic Gardens, Kew, England) together with Alexander Zizka (University of Gothenburg, Sweden) talked about recent advances and techniques to investigate biogeography with a focus on the Neotropics, and (ii) Thomas Givnish (University of Wisconsin, U.S.A.) presented a talk about phylogenetics, diversification analyses and molecular dating in the Bromeliaceae. Almos t 30 sympos ium ta lks were organized (see the following abstract book for the names of organizers . Access on 23 May 2019. Versieux LM, Palma-Silva C, Wendt T & Mercier H (2018) Report from the 2nd World Congress of Bromeliaceae Evolution – BromEvo II (Natal, Brazil, 2018). Botanical Journal of the Linnean Society 192: 587-588. DOI: . Wilson KL & Morrison DA (2000) Monocots - systematics and evolution. CSIRO Publishing, Collingwood, Victoria. 738p. Woudstra Y & Veltman M (2018). Building the whole from its parts. Available at . Access on 9 March 2019. Area Editor: Dr. Vidal Mansano Received in June 07, 2019. Accepted in September 06, 2019. This is an open-access article distributed under the terms of the Creative Commons Attribution License.