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1 January 2013 Pellaea flavescens, a Brazilian Endemic, is a Synonym of Old World Pellaea viridis
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Abstract

A phylogenetic analysis of plastid rbcL sequences indicates that Pellaea flavescens from Brazil is nested within the Old World species Pellaea viridis. The morphology of these two species is similar and P. flavescens is here considered to be a synonym of the older P. viridis. This fern may have been introduced to and subsequently naturalized in Brazil or, alternatively, the natural result of long distance dispersal.

2013 by the American College of Veterinary Internal Medicine
Jefferson Prado, Eric Schuettpelz, Regina Y. Hirai, and Alan R. Smith "Pellaea flavescens, a Brazilian Endemic, is a Synonym of Old World Pellaea viridis," American Fern Journal 103(1), 21-26, (1 January 2013). https://doi.org/10.1640/0002-8444-103.1.21
Published: 1 January 2013
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