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	Provedor de dados Acta Botanica (2) Autor Franca,Rafael de Oliveira (2) Marzinek,Juliana (2) Carmo-Oliveira,Renata (1) De-Paula,Orlando Cavalari (1) Dematteis,Massimiliano (1) Marques,Danilo (1) Mais... Palavra-chave Compositae (2) Carpopodium (1) Cypsela (1) Embryogenesis (1) Eupatorieae (1) Floral disk (1) Ontogeny (1) Pappus (1) Phytomelanin (1) Vernonia (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2018 (1) 2015 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Embryology of Ageratum conyzoides L. and A. fastigiatum R.M. King & H. Rob. (Asteraceae) Acta Botanica Franca,Rafael de Oliveira; De-Paula,Orlando Cavalari; Carmo-Oliveira,Renata; Marzinek,Juliana. Ageratum has a complex circumscription, and recent studies have indicated its polyphyletism. The genus has been placed in the tribe Eupatorieae whose embryology is not fully known. Embryological data are conservative and important indicators of phylogenetic relationships and can improve family relationships. This study presents, for the first time in Eupatorieae, embryological data for Ageratum conyzoides and A. fastigiatum. Both species have common features of the family such as a unitegmic anatropous ovule, basal placentation, secretory tapetum, Polygonum megagametophyte, and Asterad embryogenesis. The data obtained reinforce the heterogeneity of the family embryology and show, for the first time, the anther wall development of the monocotyledonous type... Tipo: Info:eu-repo/semantics/article Palavras-chave: Compositae; Embryogenesis; Eupatorieae; Ontogeny; Phytomelanin. Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062015000100008 Fruit of Lepidaploa (Cass.) Cass. (Vernonieae, Asteraceae): anatomy and taxonomic implications Acta Botanica Marques,Danilo; Franca,Rafael de Oliveira; Dematteis,Massimiliano; Marzinek,Juliana. ABSTRACT Lepidaploa is a taxonomically complex genus of Vernonieae, which is difficult to delimit morphologically due to vegetative and reproductive characters that overlap with Chrysolaena and Lessingianthus. Anatomical studies of cypselae are taxonomically useful for delimiting subtribes, genera and species of Asteraceae, and especially within Astereae and Eupatorieae. Given the importance of cypselae to the taxonomy of tribes of Asteraceae, we searched for morphological patterns among the species of Lepidaploa. Using light microscopy, we analyzed fruits of 21 species of Lepidaploa to evaluate the taxonomic position of the genus and species of questionable placement in the group. Our results showed that the morphologies of the cypselae of species of... Tipo: Info:eu-repo/semantics/article Palavras-chave: Carpopodium; Compositae; Cypsela; Floral disk; Pappus; Vernonia. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062018000400642 Registros recuperados: 2 Primeira ... 1 ... Última

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