Vania Goncalves Lourenco Esteves
@ufrj.br
Universidade Federal do Rio de Janeiro
Scopus Publications
Scopus Publications
Vinicius José Fernandes, Elen de Lima Aguiar-Menezes, José Guilherme Marinho Guerra, Cláudia Barbieri Ferreira Mendonça, Vania Gonçalves-Esteves, Janaina Ribeiro Costa-Rouws, and Thiago Sampaio de Souza
Springer Science and Business Media LLC
Larisse Timoteo de Almeida, Marcus José de Azevedo Falcão, Cláudia Barbieri Ferreira Mendonça, and Vania Gonçalves-Esteves
Elsevier BV
Alves Gabriela Conde de Mello, Massimo G. Bovini, Cláudia Barbieri Ferreira Mendonça, and Vania Gonçalves-Esteves
Springer Science and Business Media LLC
Marcelo Trovó, Wellerson Picanço Leite, Aline Sayuri Tajima, Gabriela de Mathias Tessari, Renato Ramos, Vania Gonçalves‐Esteves, and Alessandra Ike Coan
Wiley
The new species, Paepalanthus fonsecae (Eriocaulaceae), is described and illustrated. It is placed in P. sect. Conodiscus due to its dimerous flowers, subcylindrical receptacles, and a gynoecium with the nectariferous branches of the style inserted below the level of the short stigmas on the fused portion of the style. The new species is compared with similar congeners, especially P. echinoides, from which it is mainly distinguished by having an elongated aerial stem covered by membranaceous and flat leaves, and the inflorescences consisting of usually fewer but longer scapes, each subtending a wider capitulum with elliptic involucral bracts. Paepalanthus fonsecae is known from two collections from central Brazil in the municipalities of Alto Paraíso de Goiás and Cavalcante and, according to IUCN criterion B, it should be treated as critically endangered (CR). Detailed comments on the species' distribution and morphology, along with new anatomical and palynological data, are provided.
Ana Carolina Mezzonato-Pires, Gabriel Henrique Gomes de Souza Freitas Teixeira, Cláudia Barbieri Ferreira Mendonça, and Vania Gonçalves-Esteves
Informa UK Limited
Thayná Rosa Batista Martins, José Fernando Andrade Baumgratz, Cláudia Barbieri Ferreira Mendonça, and Vania Gonçalves-Esteves
Informa UK Limited
Fernanda Da Costa Alzer, Ricardo Couto, Vania Gonçalves-Esteves, and Cláudia Barbieri Ferreira Mendonça
Informa UK Limited
Thayná Rosa Batista Martins, Raquel Maria Batista Souza-Souza, Wellerson Picanço Leite, Roberto Lourenço Esteves, Cláudia Barbieri Ferreira Mendonça, and Vania Gonçalves-Esteves
Informa UK Limited
Vinicius José Fernandes, Elen de Lima Aguiar-Menezes, José Guilherme Marinho Guerra, Cláudia Barbieri Ferreira Mendonça, Vania Gonçalves-Esteves, Janaina Ribeiro Costa-Rouws, and Thiago Sampaio de Souza
Springer Science and Business Media LLC
Luiz Antonio Costa Rodrigues, Cláudia Barbieri Ferreira Mendonça, Marcus Vinicius Vaughan Jennings Licínio, Kamila da Matta Agostini, Alexandre Santos Alencar, and Vania Gonçalves-Esteves
Springer Science and Business Media LLC
Gabriel Henrique Gomes de Souza Freitas Teixeira, Ana Carolina Mezzonato-Pires, Lamarck Rocha, Vania Gonçalves-Esteves, and Cláudia Barbieri Ferreira Mendonça
Springer Science and Business Media LLC
Simone Cartaxo-Pinto, Marcelo Fernando Devecchi, José Rubens Pirani, Cláudia Barbieri Ferreira Mendonça, and Vania Gonçalves-Esteves
Elsevier BV
Simone Cartaxo-Pinto, Ilgner Fernando Tavares Vieira, Jeane Marinho Nascimento, Vinicius R. Bueno, Gustavo Heiden, Cláudia Barbieri Ferreira Mendonça, and Vania Gonçalves-Esteves
Informa UK Limited
Vania Gonçalves-Esteves, Gabrielle Reboredo Menezes Vieira, Simone Cartaxo-Pinto, and Claudia Barbieri Ferreira Mendonça
Informa UK Limited
Jaquelini Luber, Tatiana Tavares Carrijo, Mauricio Moreira Martins, Cláudia Barbieri Ferreira Mendonça, and Vania Gonçalves-Esteves
Informa UK Limited
Simone Cartaxo-Pinto, Vania Gonçalves-Esteves, and Claudia Barbieri F. Mendonça
Springer Science and Business Media LLC
Ana Carolina Mezzonato-Pires, Gabriel Henrique Gomes de Souza Freitas Teixeira, Cláudia Barbieri Ferreira Mendonça, and Vania Gonçalves-Esteves
Elsevier BV
Vania Gonçalves-Esteves, Simone Cartaxo-Pinto, Elysiane Barros Marinho, Roberto Lourenço Esteves, and Cláudia Barbieri Ferreira Mendonça
Springer Science and Business Media LLC
Claudia Barbieri Ferreira Mendonça, Leila Nunes Morgado, Gabriel Henrique Gomes de Souza Freitas Teixeira, Elen de Lima Aguiar-Menezes, Thiago Sampaio de Souza, Vinicius José Fernandes, Alice Teodorio Lixa, Roberto Lourenço Esteves, and Vania Gonçalves-Esteves
Springer International Publishing
Vania Gonçalves-Esteves, Ana Carolina Mezzonato-Pires, Elysiane Barros Marinho, Raquel Maria Batista Souza de Souza, Roberto Lourenço Esteves, Simone Cartaxo-Pinto, and Claudia Barbieri Ferreira Mendonça
Springer International Publishing
RAQUEL M.B. SOUZA-SOUZA, GRACE K.R. DE SOUSA, ROBERTO L. ESTEVES, CLAUDIA B.F. MENDONÇA, and VANIA GONÇALVES-ESTEVES
FapUNIFESP (SciELO)
Simone Cartaxo-Pinto, Betsy R. Jackes, Elysiane de Barros Marinho, Vania Gonçalves-Esteves, and Cláudia Barbieri Ferreira Mendonça
Informa UK Limited
ABSTRACT The family Vitaceae has a wide distribution, occurring in temperate, subtropical, and tropical climates. Vine members of the family thrive in different types of vegetation. Currently, the family includes five recognized tribes: Ampelopsideae, Cisseae, Cayratieae, Parthenocisseae, and Viteae. This study describes the pollen morphology of representatives of Ampelopsideae, Cayratieae, and Parthenocisseae. The other tribes are not described because they have been the subject of previous studies. The aim was to assess the relationships among the five tribes using multivariate analysis and to reconstruct the evolution of pollen characters using existing phylogenetic hypotheses. Specimens representing the three tribes were obtained from herbaria, treated by the acetolysis method, measured, photographed, and described using light and scanning electron microscopy. Results showed that pollen grains are medium (25–50 µm) in size, isopolar, tricolporate, and subprolate to prolate. Ornamentation varies between species. Multivariate analysis was based on quantitative characters, of which pollen diameters, apocolpium side, and polar area index were the most significant. Tracing of pollen characters showed that size, shape, and ornamentation are an evolutionary trend within the family. This investigation expands the palynological knowledge on representatives of Vitaceae tribes, contributing to future palynotaxonomic and evolutionary studies.
Simone Cartaxo-Pinto, Gabriel Henrique Cardoso Paulo, Betsy R. Jackes, Vania Gonçalves-Esteves, and Claudia Barbieri F. Mendonça
Informa UK Limited
Abstract The tribe Viteae comprises about 200 species and is represented by the genera Vitis and Ampelocissus. Vitis is the most studied genus within the grape family (Vitaceae) because of the global economic importance of its fruits and derived products. This study examined the palynology of Ampelocissus and Vitis species belonging to the tribe Viteae to identify pollen characters that may contribute to the taxonomic and morphological characterisation of Ampelocissus. Pollen specimens were obtained from herbaria, treated by the acetolysis method, measured, photographed, and described using light and scanning electron microscopy. In the analysed species, pollen grains were isopolar or heteropolar, medium-sized, tricolporate, oblate spheroidal to subprolate. Ornamentation patterns differed among species, with examples of bireticulate, microreticulate, perforate, reticulate, and rugulate sexine. These characters were used for the development of a pollen key to the genera. Principal component analysis revealed that quantitative pollen characters were the most important for group discrimination. This study contributes to the palynological knowledge of some undescribed species and provides novel palynotaxonomic information on the family Vitaceae.
Beryl Eirene Lutz, Fernanda da Costa Alzer, Vera Lúcia Gomes-Klein, Cláudia Barbieri Ferreira Mendonça, and Vania Gonçalves-Esteves
Springer Science and Business Media LLC
Dilma Melo da Silva, Lana da Silva Sylvestre, Cláudia Barbieri Ferreira Mendonça, and Vania Gonçalves-Esteves
Informa UK Limited
ABSTRACT The Blechnaceae is a family of leptosporangiate ferns with a wide geographical distribution. Recent phylogenies revealed several lineages within the family, culminating in a classification system comprising 25 recognized genera grouped into three subfamilies. Spore surface morphology has major importance in the taxonomy of the group, but there is limited information on the relevance of other palynological characters. This study aimed to examine whether spore morphology aids in distinguishing genera of Blechnaceae according to the current phylogenetic classification. Spores from 28 species distributed in 12 genera of the subfamilies Blechnoideae, Stenochlaenoideae, and Woodwardioideae were examined. Specimens were acetolyzed, measured, described, and illustrated using light and scanning electron microscopy. The analyzed spores were medium to large in size, with a monolete scar of varied size, straight, and without margo. The perine was three-layered, except in the subfamily Stenochlaenoideae, which showed a single-layered perine. Blechnoideae was the most palynologically diverse subfamily. Woodwardioideae and Stenochlaenoideae spore characters had high diagnostic value for identification at the genus level. Austroblechnum and Blechnum showed high similarity; no single spore character could be used to discriminate between species of these genera. Blechnum anthracinum was the only species within its genus to exhibit cristate spores, with filaments and perforations. Morphometric analysis did not prove to be a useful tool for differentiating subfamilies or genera, possibly because of the influence of polyploid individuals. This investigation revealed unique spore characters for some genera and provided morphological descriptions that allow identification at the species level, contributing to the taxonomic study of Blechnaceae.