Taxonomy and distribution of Sagittaria (Alismataceae) in north-eastern Brazil

The family Alismataceae comprises 12 genera of herbaceous aquatic plants. There are only two genera that are naturally found in Neotropical regions: Echinodorus and Sagittaria. This study examines the species of Sagittaria from north-eastern Brazil, a region that is characterized by a semiarid clima...

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Veröffentlicht in:Aquatic botany 2006-04, Vol.84 (3), p.183-190
Hauptverfasser: Matias, Lígia Queiroz, Irgang, Bruno Edgar
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description The family Alismataceae comprises 12 genera of herbaceous aquatic plants. There are only two genera that are naturally found in Neotropical regions: Echinodorus and Sagittaria. This study examines the species of Sagittaria from north-eastern Brazil, a region that is characterized by a semiarid climate and intermittent aquatic ecosystems. Four taxa have been identified: S. guayanensis subsp. guayanensis, S. rhombifolia, S. lancifolia subsp. lancifolia and S. planitiana. Full descriptions, observations, geographic distributions, illustrations and a species key are presented.
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subjects Alismataceae
Arrowhead
Echinodorus
Freshwater
North-eastern Brazil
Sagittaria
Semiarid region
title Taxonomy and distribution of Sagittaria (Alismataceae) in north-eastern Brazil
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