A Distinctive New Species Of Ouratea (ochnaceae) From The Jalapão Region, Tocantins, Brazil

dc.creatorYamamoto K.
dc.creatorChacon R.G.
dc.creatorProenca C.
dc.creatorCavalcanti T.B.
dc.creatorGraciano-Ribeiro D.
dc.date2008
dc.date2015-06-30T19:35:14Z
dc.date2015-11-26T14:45:55Z
dc.date2015-06-30T19:35:14Z
dc.date2015-11-26T14:45:55Z
dc.date.accessioned2018-03-28T21:55:18Z
dc.date.available2018-03-28T21:55:18Z
dc.identifier
dc.identifierNovon. , v. 18, n. 3, p. 397 - 404, 2008.
dc.identifier10553177
dc.identifier10.3417/2006096
dc.identifierhttp://www.scopus.com/inward/record.url?eid=2-s2.0-53249097919&partnerID=40&md5=a5a45a7f3566c57022cffb33b70e6793
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/106763
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/106763
dc.identifier2-s2.0-53249097919
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1252632
dc.descriptionOuratea acicularis R. Chacon & K. Yamamoto (Ochnaceae), a new species from the recently created Estação Ecológica Serra Geral do Tocantins, Jalapão region, Brazil, is described. Ouratea acicularis appears to be most closely allied to O. oleifolia (A. Saint-Hilaire) Engler. Both species share a pubescent indumentum on the young branches, leaf surfaces, inflorescence axes, and outer surface of the flower buds, as well as revolute leaves and acute flower buds. Ouratea acicularis is unique in the genus in its aciculate leaf blade, at least 4 times narrower than in O. oleifolia, with a strongly revolute margin that conceals the abaxial leaf surface except for the midrib, as well as its inconspicuous secondary venation and narrower flower buds. Anatomically, O. acicularis differs from other previously studied species of Ouratea Aublet in that the cells of the adaxial epidermis have an hourglass-shaped lumen, pericellular forked hairs fused at the base, an unusually large cap of fibers and sclereids above the collateral vascular bundles, and in the predominantly 2-layered chlorenchyma. The stems of O. acicularis are noteworthy for the conspicuous secretory cavities of the cortex and secondary xylem, in which fibers and vessel members predominate.
dc.description18
dc.description3
dc.description397
dc.description404
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dc.descriptionYamamoto, K. 1989. Morfologia, Anatomia e Sistemática do Gênero Ouratea Aubl.: Levantamento Preliminar de Características de Importância Taxonômica e Avaliação das Classificações Vigentes. Dissertação de Mestrado, Programa de Pós Graduação em Biologia Vegetal, Universidade Estadual de Campinas, Campinas, Brasil_. 1995. Estudos Taxonômicos Sobre Ouratea parviflora (DC.) Baill. (Ochnaceae) e Espécies Afins Ocorrentes em Floresta Atlântica nas Regiões Sudeste e Sul do Brasil. Ph.D. Thesis (unpubl.), Universidade Estadual de Campinas, Brazil
dc.languageen
dc.publisher
dc.relationNovon
dc.rightsaberto
dc.sourceScopus
dc.titleA Distinctive New Species Of Ouratea (ochnaceae) From The Jalapão Region, Tocantins, Brazil
dc.typeArtículos de revistas


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