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Novelties in Eleocharis ser. Tenuissimae (Cyperaceae), and a Key to the Species of the Series Occurring in Brazil

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Abstract:

Five new species of are described based on specimens from South America: and . Diagnostic characters, description, detailed illustration and taxonomic comments are provided. In addition, we propose the lectotypification of and a new synonym to . All those species belong to ser. , which has a pantropical distribution with some species reaching temperate areas. A preliminary key to separate the species of the series that occur in Brazil is also presented.

Spanish
Cinco nuevas especies de Eleocharis son descritas sobre la base de especimenes procedentes de América del Sur: Eleocharis angustispicula, E. densicaespitosa, E. hatschbachii, E. ramboana y E. urceolatoides . Caracteres diagnósticos, descripciones, ilustraciones detalladas y comentarios taxonómicos son incluidos. Además, se propone la lectotipificación de Eleocharis glauco-virens y un nuevo sinónimo para E. loefgreniana. Todas estas especies pertenecen a Eleocharis ser. Tenuissimae que tiene una distribución pantropical con algunas especies alcanzando zonas templadas. Se presenta una clave preliminar para identificación de las especies de la serie que ocurren en Brasil.

Keywords: BRAZIL; LECTOTYPIFICATION; NEW SPECIES; NEW WORLD; SYNONYMY; TAXONOMY

Document Type: Regular Paper

DOI: http://dx.doi.org/10.1600/036364410792495836

Publication date: July 1, 2010

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