32 research outputs found

    Diversity of ferns and lycophytes in Brazil

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    This compilation of ferns and lycophytes in Brazil is an update of the one published in 2010 in CatĂĄlogo de Plantas e Fungos do Brasil. The methodology consisted in collecting data from regional checklists, taxonomic revisions, and selected databases. Invited specialists improved the list accessing a website housed at the Jardim BotĂąnico do Rio de Janeiro. The results show 1,253 species: 1,111 of ferns and 142 of lycophytes. This number is 6.5% higher than the previous one (1,176 spp.). The percentage of endemic species decreased from 38.2% to 36.7%. We recognized 36 families and 133 genera (vs. 33 families, 121 genera in 2010). The 10 most diverse families are Pteridaceae (196 spp.), Dryopteridaceae (179), Polypodiaceae (164), Hymenophyllaceae (90), Thelypteridaceae (86), Aspleniaceae (78), Lycopodiaceae (64), Selaginellaceae (55), Anemiaceae (51), and Cyatheaceae (45). The three most diverse genera are still Elaphoglossum (87 spp.), Thelypteris (85), and Asplenium (74). The richest phytogeographic domain continues to be in the Atlantic Rainforest with 883 species which also has the largest number of endemic and threatened species, followed by the Amazon Rainforest (503), Cerrado (269), Pantanal (30), Caatinga (26), and Pampa (eight). Minas Gerais remains as the richest state (657 spp. vs. 580 in 2010).Esta compilação de samambaias e licĂłfitas do Brasil Ă© uma atualização daquela de 2010, no CatĂĄlogo de Plantas e Fungos do Brasil. A metodologia consistiu na reuniĂŁo de dados de listas regionais, revisĂ”es de grupos e bancos de dados selecionados. Especialistas convidados melhoraram a lista atravĂ©s do acesso a um sĂ­tio da web do Jardim BotĂąnico do Rio Janeiro. Os resultados apontam uma diversidade de 1.253 espĂ©cies, sendo 1.111 samambaias e 142 licĂłfitas. Este nĂșmero Ă© 6,5% maior que o anterior (1.176 espĂ©cies). As espĂ©cies endĂȘmicas decresceram de 38,2% para 36,7%. Foram reconhecidas 36 famĂ­lias e 133 gĂȘneros (vs. 33 famĂ­lias, 121 gĂȘneros em 2010). As dez famĂ­lias mais diversas sĂŁo: Pteridaceae (196 espĂ©cies), Dryopteridaceae (179), Polypodiaceae (164), Hymenophyllaceae (90), Thelypteridaceae (86), Aspleniaceae (78), Lycopodiaceae (64), Selaginellaceae (55), Anemiaceae (51) e Cyatheaceae (45). Os trĂȘs gĂȘneros mais diversos continuam sendo Elaphoglossum (87 espĂ©cies), Thelypteris (85) e Asplenium (74). O DomĂ­nio FitogeogrĂĄfico mais rico continua sendo a Mata AtlĂąntica (883 espĂ©cies) e tambĂ©m com mais espĂ©cies endĂȘmicas e ameaçadas, seguido pela AmazĂŽnia (503 espĂ©cies), Cerrado (269), Pantanal (30), Caatinga (26) e Pampa (oito). Minas Gerais permanece como o estado com maior riqueza (657 espĂ©cies vs. 580 em 2010)

    Using online databases to produce comprehensive accounts of the vascular plants from the Brazilian protected areas: The Parque Nacional do Itatiaia as a case study.

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    Brazil is one of the most biodiverse countries in the world, with about 37,000 species of land plants. Part of this biodiversity is within protected areas. The development of online databases in the last years greatly improved the available biodiversity data. However, the existing databases do not provide information about the protected areas in which individual plant species occur. The lack of such information is a crucial gap for conservation actions. This study aimed to show how the information captured from online databases, cleaned by a protocol and verified by taxonomists allowed us to obtain a comprehensive list of the vascular plant species from the "Parque Nacional do Itatiaia", the first national park founded in Brazil. All existing records in the online database JABOT (15,100 vouchers) were downloaded, resulting in 11,783 vouchers identified at the species level. Overall, we documented 2,316 species belonging to 176 families and 837 genera of vascular plants in the "Parque Nacional do Itatiaia". Considering the whole vascular flora, 2,238 species are native and 78 are non-native

    Distribution patterns of ferns and lycophytes in the Coastal Region of the state of Rio Grande do Sul, Brazil

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