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      Generic additions to the Rapateaceae of Rondônia, Brazil Translated title: Novos registros genéricos de Rapateaceae para Rondônia, Brasil

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          Abstract

          ABSTRACT Rapateaceae is a monocot family centered in the Guiana Shield region of South America. This article reports four generic additions to the Rapateaceae of Rondônia, a state in northern Brazil. Cephalostemon gracilis (Poepp. & Endl.) R.H.Schomb., Duckea cyperaceoidea (Ducke) Maguire, Monotrema xyridoides Gleason, and Schoenocephalium cucullatum Maguire were recorded in lowland savannas and open white-sand ecosystems in the state. These findings extend significantly the known diversity of the Rapateaceae taxa occurring in Rondônia, and represent an extension of their geographical distribution to a Brazilian state with no part of its territory in the Guiana Shield.

          Translated abstract

          RESUMO Rapateaceae é uma família de monocotiledôneas centrada na região do Escudo das Guianas da América do Sul. Este artigo relata o registro de quatro gêneros de Rapateaceae para o estado de Rondônia, norte do Brasil. Cephalostemon gracilis (Poepp. & Endl.) R.H.Schomb., Duckea cyperaceoidea (Ducke) Maguire, Monotrema xyridoides Gleason e Schoenocephalium cucullatum Maguire são registrados em áreas de baixa altitude, ocorrendo em savanas e ecossistemas de campinas e campinaras no estado. Estas descobertas aumentam significativamente a diversidade conhecida de táxons de Rapateaceae para Rondônia, bem como representam uma extensão de sua distribuição geográfica para um estado que não tem nenhuma parte de seu território incluído no Escudo das Guianas.

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          Most cited references29

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          Ancient Vicariance or Recent Long‐Distance Dispersal? Inferences about Phylogeny and South American–African Disjunctions in Rapateaceae and Bromeliaceae Based onndhF Sequence Data

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            Index Herbariorum: a global directory of public herbaria and associate staff

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              Amazon vegetation: how much don’t we know and how much does it matter?

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                Author and article information

                Contributors
                Role: ND
                Journal
                aa
                Acta Amazonica
                Acta Amaz.
                Instituto Nacional de Pesquisas da Amazônia (Manaus, AM, Brazil )
                0044-5967
                1809-4392
                June 2017
                : 47
                : 2
                : 95-102
                Affiliations
                [1] Boa Vista Roraima orgnameUniversidade Federal de Roraima orgdiv1Centro de Estudos da Biodiversidade Brazil
                Article
                S0044-59672017000200095
                10.1590/1809-4392201700691
                0b4ddc5b-8620-4c77-aa72-72296435c83c

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 13 March 2017
                : 07 March 2017
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 32, Pages: 8
                Product

                SciELO Brazil


                Amazonia,floristics,Guiana Shield,new record,Amazônia,Escudo das Guianas,florística,nova ocorrência

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