Athenaea Sendtn. nom. cons. is re-established as the correct name for the taxon previously referred to as Aureliana Sendtn. (Withaninae, Solanaceae), which is a later homonym of Aureliana Boehm. (Araliaceae), and thus illegitimate. As a result, five new combinations transferring species from Aureliana Sendtn. to Athenaea are necessary and are made here: Athenaea angustifolia comb. nov., Athenaea fasciculata comb. nov., Athenaea sellowiana comb. nov., Athenaea tomentosa comb. nov., and Athenaea wettsteiniana comb. nov. We also provide lectotypifications for names not previously typified (Athenaea anonacea Sendtn., Athenaea cuspidata Witasek, Athenaea hirsuta Sendtn., Aureliana tomentosa Sendtn., Aureliana velutina var. obtusifolia Sendtn., Bassovia lucida var. pallida Dunal, Bassovia lucida var. pilosulum Dunal, Saracha brasiliensis Klotzsch, Withania picta var. parvifolia Dunal, Withania picta var. subnuda Dunal), an epitype for Aureliana tomentosa Sendtn. and a synoptic list of all currently recognized species of Athenaea, including geographic distributions and nomenclatural details.
Aureliana and Athenaea (Withaniinae, Solanaceae) are two genera of shrubs or small trees with centres of diversity in the Brazilian Atlantic Rain Forest. They are difficult to distinguish using gross morphology, and are traditionally segregated based on differences in fruiting calyx size. Pollen grains of all taxa were acetolysed, treated and examined with light and scanning electron microscopy, with the aim of identifying diagnostic characters. Microphotographs and illustrations of pollen grains are presented. The species analysed present small-to medium-sized monad pollen grains of varying morphology with long to extremely long colpi, and lalongate endoapertures. The analysis showed that the pollen grains of both genera are very similar, differing in size-related characters. These data contributed to the synonymisation of Athenaea within Aureliana.
Nos últimos anos, os cidadãos brasileiros têm se interessado cada vez mais sobre política, especialmente quando o assunto afeta a economia, e assim procurando notícias em portais online. Neste trabalho, analisamos alguns portais de notícias nacionais para identificar quais temas são mais presentes na sessão de notícias mais lidas e entender as preferências dos usuários. Para isso, o sistema desenvolvido faz a coleta das páginas mais lidas de cada portal e categoriza as notícias encontradas. Para testar e validar o sistema, catalogamos as notícias mais lidas do ano de 2017 e 2018 de três portais: UOL, Veja e Estadão. Os dados demonstram que os usuários do portal UOL têm uma preferência por notícias de entretenimento, enquanto no Estadão, o público é dividido entre Política e Entretenimento, e na Veja a preferência é por notícias de política, economia e opinião. Os resultados mostram que notícias de política tiveram um aumento de leituras no ano de 2018, comparado ao ano de 2017.
-(Papilionoideae (Leguminosae) on Mata do Paraíso, Viçosa, Minas Gerais, Brazil: herbs, shrubs and climbers). This study consists in a floristic survey of Papilionoideae species at shrub and herbaceous layer of Mata do Paraíso, an important fragment of Submontain Semideciduos Seasonal Forest, Viçosa Municipality, "Zona da Mata Mineira" region. The field work was carried out in the studied area, from July/2004 to August/2005, along the trials already set up. Descriptions, illustrations, identification keys to the collected taxa, and comments on the geografic distribution and diagnostic characters were presented.The results of this work were the recognition of 19 taxa belonging to nine genera. From these, Desmodium (six species) and Crotalaria (four species) were the most representative.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.