Navegando por Assunto "Samambaias"

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Aspleniaceae (Polypodiopsida) do corredor de biodiversidade do norte do Pará, Brasil: um fragmento do Centro de Endemismo Guiana
(2012-06) GÓES NETO, Luiz Armando de Araújo; PIETROBOM, Marcio Roberto
This paper is part of a series that will treat the lycophyte and fern species of the Northern Pará Biodiversity Corridor, and is part of the project "Diagnóstico da Biodiversidade das Unidades de Conservação Estaduais do Mosaico Calha Norte, Estado do Pará". Aspleniaceae are treated in this article, and an identification key, illustrations, geographic distributions, brief descriptions, and taxonomic comments are provided. There are eight species of Aspleniaceae in this region (Asplenium angustum Sw., A. auritum Sw., A. cruegeri Hieron., A. delitescens (Maxon) L.D. Gómez, A. juglandifolium Lam., A. salicifolium L., A. serratum L. and A. stuebelianum Hieron.). The majority of the species are epiphytes that grow on decaying trunks inside the forest. For this family, the registered species correspond to 35% of the species in the Brazilian Amazon, and 40% of species in Pará State.
Acesso aberto (Open Access)
Cyatheales (Polypodiopsida) do Corredor de Biodiversidade do Norte do Pará, Brasil
(2014-09) GÓES NETO, Luiz Armando de Araújo; PIETROBOM, Marcio Roberto
This paper is part of a series where the lycophyte and fern species of the Biodiversity Corridor ofnorthern Pará State are presented, produced under the project "Diagnóstico da Biodiversidade das Unidades de ConservaçãoEstaduais do Mosaico Calha Norte, Estado do Pará". In this manuscript the taxonomic treatment of Cyatheales is presented with identification keys, illustrations, distribution, descriptions, and comments to the studied taxa. Two families (Cyatheaceae and Metaxyaceae), three genera (Cnemidaria, Cyathea, and Metaxya), eight species, and one variety are registered. Cyathea is the most representative genus with seven species.
Acesso aberto (Open Access)
Dryopteridaceae e Lomariopsidaceae (Polypodiopsida) do Campo Experimental da Embrapa Amazônia Oriental, Moju, Pará, Brasil
(Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, 2010-09) ROSÁRIO, Sebastião Maciel do; SILVA, Marcio Roberto Pietrobom da
This study presents the species of the families Dryopteridaceae and Lomariopsidaceae recorded at Embrapa's Eastern Amazonia Field Station. Dryopteridaceae is represented in the area by Cyclodium heterodon (Schrad.) T. Moore var. abbreviatum (C. Presl) A.R. Sm., C. inerme (Fée) A.R. Sm., C. meniscioides (Willd.) C. Presl var. meniscioides, Elaphoglossum discolor (Kuhn) C. Chr., E. flaccidum (Fée) T. Moore, E. laminarioides (Bory ex Fée) T. Moore, E. luridum (Fée) H. Christ, E. obovatum Mickel and E. styriacum Mickel. Lomariopsidaceae is represented by Lomariopsis prieuriana Fée, Nephrolepis biserrata (Sw.) Schott, N. brownii (Desv.) Hovenkamp & Miyam. and N. rivularis (Vahl) Mett. ex Krug. Identification keys for genera and species, descriptions, illustrations, geographical distributions and habitat data are presented.
Acesso aberto (Open Access)
Hymenophyllaceae (Polypodiopsida) na mesorregião metropolitana de Belém, Estado do Pará, Brasil
(Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, 2015-09) SILVA, Gisele Teixeira da; SILVA, Marcio Roberto Pietrobom da
Hymenophyllaceae (Polypodiopsida) from the Metropolitan Mesoregion of Belém, State of Pará, Brazil. In Brazil as well as in the Brazilian Amazon, most information regarding to Hymenophyllaceae is contained in floristic surveys and there are few specific studies to the family. This work presents a floristic treatment of filmy ferns from Metropolitan Mesoregion of Belem. We recorded 19 species belonging to the genera Didymoglossum (6 spp.),Hymenophyllum (3 spp.), Polyphlebium (1 sp.) and Trichomanes (9 spp.) that correspond to about 60% of filmy ferns from Pará. Trichomanes crispum and T. vittaria are new records to the studied area. The cities of Belém and Santa Barbara do Pará have greater species richness probably due to the ecological parks and to concentrate studies in these areas. Keys to the genera and species as well as descriptions, taxonomic comments, geographic distributions data, types of vegetation, substratum and illustrations are given.
Acesso aberto (Open Access)
Samambaias e licófitas do Parque Ecológico do Gunma, município de Santa Bárbara do Pará, estado do Pará, Brasil
(Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, 2010-06) COSTA, Jeferson Miranda; SILVA, Marcio Roberto Pietrobom da
The Gunma Ecological Park - PEG (Santa Bárbara do Pará, Pará state, Brazil) is one of the few preserved forest remnants in the metropolitan region of Belém. The PEG has a rich phanerogamic flora with rare species, but nothing is known about its seedless vascular-plant flora. Our aim is to present a floristic survey of ferns and lycophytes from Gunma Ecological Park. The 56 recorded species belong to 28 genera and 15 families. This is the first record for Lellingeria suspensa (L.) A.R. Sm. & R.C. Moran in Pará state and also for Polyphlebium diaphanum (Kunth) Ebihara & Dubuisson in the Brazilian Amazon. The richest families were Hymenophyllaceae (15 spp.), Dryopteridaceae (8 spp.), Polypodiaceae (7 spp.) and Pteridaceae (6 spp.). The genera with highest number of species were Trichomanes (7 spp.) and Elaphoglossum (6 spp.). The majority of the species were herbaceous (52 spp.), with epiphytic (30 spp.) and terrestrial (23 spp.) habitat, occurred exclusively in the understory (35 spp.) and presented American distribution (34 spp.). This result demonstrates the importance of Gunma Ecological Park for local/regional seedless vascular-plant flora preservation.