Taxonomic Review
Mostrando 1-12 de 73 artigos, teses e dissertações.
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1. ISOFLAVONOIDES DA TRIBO DALBERGIEAE: UMA CONTRIBUIÇÃO QUIMIOSSISTEMÁTICA PARA A SUBFAMÍLIA PAPILIONOIDEAE
Plants from Fabaceae family have several secondary metabolites and high biological potential. The subfamily Papilionoideae (Fabaceae) has 28 tribes, of which Dalbergieae comprises 49 genera and 1325 species. Isoflavonoids are chemotaxonomic markers of Papilionoideae and have important biological properties. This review describes the isoflavonoids and biologi
Quím. Nova. Publicado em: 2020-09
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2. Karyotype characterization and evolution of chromosome number in Cactaceae with special emphasis on subfamily Cactoideae
ABSTRACT Cactaceae species are karyotypically well-known with x = 11 and chromosome number variation due mainly to polyploidization. However, both assumptions are based on descriptive observations without taking an evolutionary framework of Cactaceae into account. Aiming to confirm these hypotheses in an evolutionary context, we obtained chromosome numbers f
Acta Bot. Bras.. Publicado em: 2020-03
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3. Novos sinônimos em Stachytarpheta (Verbenaceae) do Brasil
RESUMO Durante a revisão taxonômica de Stachytarpheta (Verbenaceae) para o projeto "Flora do Brasil 2020" verificamos que alguns táxons apresentam alta taxa de sobreposição de caracteres morfológicos, o que dificulta a circunscrição e o reconhecimento dos mesmos. Com base na análise morfológica dos táxons, revisão da literatura especializada e an
Hoehnea. Publicado em: 11/11/2019
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4. Karyotype characterization and evolution of chromosome number in Cactaceae with special emphasis on subfamily Cactoideae
ABSTRACT Cactaceae species are karyotypically well-known with x = 11 and chromosome number variation due mainly to polyploidization. However, both assumptions are based on descriptive observations without taking an evolutionary framework of Cactaceae into account. Aiming to confirm these hypotheses in an evolutionary context, we obtained chromosome numbers f
Acta Bot. Bras.. Publicado em: 11/11/2019
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5. What do we know about Neotropical trap-nesting bees? Synopsis about their nest biology and taxonomy
Abstract Cavity-nesting bees are enigmatic because they are difficult to observe in the wild, hence trap-nests (man-made cavities) provide the means by which these bees may be studied. Trap-nests is an efficient methodology to study these bees and are common worldwide. These traps have been used for a variety of reasons, including inventories, to examine pol
Pap. Avulsos Zool.. Publicado em: 13/06/2019
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6. An integrated approach clarifies the cryptic diversity in Hypostomus Lacépède 1803 from the Lower La Plata Basin
Abstract Abstract: Hypostomus commersoni Valenciennes 1836, Hypostomus cordovae (Günther 1880) and Hypostomus laplatae (Eigenmann 1907) have been little studied since their original descriptions. This study shows a comprehensive review of these species from the Lower La Plata Basin, including their taxonomic history, distribution, color patterns, morphology
An. Acad. Bras. Ciênc.. Publicado em: 25/04/2019
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7. Taxonomic revision of the Neotropical stalk-eyed fly Plagiocephalus Wiedemann (Diptera, Ulidiidae, Ulidiinae)
ABSTRACT Plagiocephalus is a genus composed of three species mainly recognized by the males with stalked-eyes. Plagiocephalus lobularis is distributed from Northeastern Brazil to North of Argentina, P. latifrons is distributed from Mexico to Bolivia, and P. intermedius occurs in Costa Rica. We review the species of the genus, providing new diagnostic charact
Rev. Bras. entomol.. Publicado em: 2019-03
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8. Taxonomic revision of the Neotropical Lauxaniidae genus Neopachycerina Malloch, 1933 (Diptera: Schizophora), with description of a new species
Abstract A systematic review of the Neotropical Lauxaniidae genus Neopachycerina Malloch, 1933 is presented. The genus is characterized mainly based on some features of the head, like the anterior pair of fronto-orbital setae conspicuously shorter than posterior one and rather close to them; face with a distinct elevation between antennal bases; antenna slig
Pap. Avulsos Zool.. Publicado em: 29/11/2018
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9. Características evolutivas en Prosopis spp.: citogenética, genética e hibridaciones
Abstract Prosopis is a primitive genus in the Mimosoid’s clade characterized by disjunctions in its distribution areas and the difficulty in establishing its phylogeny. This paper presents an updated literature review on the evolutionary, cytogenetic, genetic and hybridization characteristics of the genus. The available data suggest that it diverged early
Rodriguésia. Publicado em: 2018-06
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10. A review of the Quaternary Scelidotheriinae (Mammalia, Xenarthra, Tardigrada) from the Tarija-Padcaya basin, Bolivia
ABSTRACT The Mylodontidae Scelidotheriinae (Mammalia, Xenarthra, Tardigrada) are a diversified clade of South American fossil ground sloths, with a wide geographic distribution, especially in high and middle latitudes. According to the last revision, the Quaternary diversity includes the genera Scelidotherium, Catonyx, and Valgipes. The clade Scelidotheriina
An. Acad. Bras. Ciênc.. Publicado em: 16/04/2018
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11. New Central American and Mexican Enaphalodes Haldeman, 1847 (Coleoptera: Cerambycidae) with taxonomic notes and a key to species
Abstract A review of Enaphalodes Haldeman, 1847 is presented. Descriptions of four new species of Enaphalodes are included: E. antonkozlovi, sp. nov. from Costa Rica, E. bingkirki, sp. nov. from Nicaragua, E. monzoni, sp. nov. from Guatemala, and E. cunninghami, sp. nov. from Mexico. Enaphalodes senex (Bates, 1884) is revalidated and it is newly recorded fro
Pap. Avulsos Zool.. Publicado em: 19/03/2018
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12. Elaiophores: their taxonomic distribution, morphology and functions
ABSTRACT Elaiophores are floral glands that secrete non-volatile oils as a reward for their pollinators. Their secretions mediate a specialized interaction between oil-producing plants and a few species of oil-collecting bees - Apidae and Melittidae. The present review focuses on the morphological and functional aspects of these secretory structures. We also
Acta Bot. Bras.. Publicado em: 15/05/2017