Over the hills and far away New plant records for

Authors: Rafael Gomes BarbosaSilva Paulo Henrique Labiak André Dos Santos Bragança Gil Renato Goldenberg Fabian A Michelangeli Gustavo Martinelli Marcus A Nadruz Coelho Daniela C Zappi Rafaela Campostrini Forzza

Publish Date: 2016/04/14

Volume: 68, Issue: 4, Pages: 397-408

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Abstract

The Guayana Shield is one of the oldest geological formations in South America ranging from southern Colombia Venezuela and the Guianas to the extreme north of the Brazilian states of Amazonas and Roraima Because of its ancient origin and isolation from other mountain ranges in South America it harbors a rich flora with high levels of endemism Recent expeditions to remote areas in the Brazilian portion of the Guayana Shield generated many new herbarium collections Through these efforts we report the first records for Brazil of 57 species and infraspecific taxa of vascular plants In most cases the taxa are narrowly distributed and were previously known from nearby populations in other countries In other cases however the new Brazilian records expand considerably the known geographical distributions of the taxaO Escudo das Guianas é uma das formações geológicas mais antigas da América do Sul que vai desde sul da Colômbia Venezuela e as Guianas ao extremo norte dos estados brasileiros do Amazonas e Roraima Devido a sua origem antiga e isolada de outras cadeias de montanhas da América do Sul abriga uma rica flora com altos níveis de endemismo Expedições recentes para áreas remotas na porção brasileira do Escudo das Guianas geraram novas coleções de herbário Através destes esforços relatamos os primeiros registros para o Brasil de 57 espécies e táxons infraespecíficos de plantas vasculares Na maioria dos casos os táxons eram previamente conhecidos a partir de populações próximas em países vizinhos Em outros casos porém os novos registros brasileiros expandem consideravelmente as distribuições geográficas conhecidas dos táxonsWe would like to thank Domingos Benício Oliveira Silva Cardoso Eduardo da Silva Leal Edlley Pessoa Luiz Menini Neto and Mariana Machado Saavedra for their help with determinations and Ricardo Azoury for the photographs We are grateful to Douglas Daly and Paul Berry for their careful reviews which improved the manuscript The first author thanks the National Council of Technological and Scientific Development CNPQ Brazil for his PIBIC student scholarships Forzza Labiak and Goldenberg thank CNPq for productivity fellowships Michelangeli and Goldenberg are funded by NSF DEB0818399 Most of our expeditions to the Montanhas da Amazônia were funded by Natura

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