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Valsko,Jefferson José; Krahl,Amauri Herbert; Holanda,Ana Sofia Sousa de; Zartman,Charles Eugene. |
Dichaea is the largest genus of the subtribe Zygopetalinae and holds it's the highest species diversity in South America. Therefore, this study aims to describe a new species of Dichaea, which occurs in northern Brazil, Dichaea bragae Valsko, Krahl & Holanda. The new species was collected in the north of Manaus in an area of ombrophilous forest and flowered when cultivated. The epithet honors Dr. Pedro Ivo Soares Braga (in memoriam), orchidologist who conducted several studies in the Brazilian Amazon. This new species show a affinity with Dichaea tenuis C. Schweinf., however it is differentiated both vegetatively and on labellum morphology. |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Taxonomy; Amazonas; Epiphyte; Dense ombrophilous forest. |
Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672014000300014 |
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Nettesheim,Felipe Cito; Menezes,Luis Fernando Tavares de; Carvalho,Daniel Costa de; Conde,Marilena Menezes Silva; Somner,Genise Vieira; Rodrigues,Guilherme de Assis; Araujo,Dorothy Sue Dunn de. |
This study describes the tree and shrub component of the Atlantic Forest on the slopes of Marambaia Island, RJ. It further evaluates which species are found at threatened species lists and the similarity that the studied forest component has with other nearby locations with similar vegetation. Data gathering relied on the joint effort of arbitrary walks and sampling units known as Transect. The same sampling criterion was applied at both approaches (DBH greater than or equal to 5 cm). A similarity analysis, followed by a Cluster analysis, was used to compare the studied vegetation component. Similarity calculations were based in the Bray-Curtis coefficient. We detected a total of 235 species. These are divided in 134 genera and 52 families. The richest... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dense ombrophilous forest; Floristic; Species richness; Similarity; Phytogeography. |
Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032012000300021 |
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