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Revisió del gènere Amaranthus L. als Pirineus sud‑orientals

Authors: Mestre, Edgard; Sáez, Llorenç; Nualart, Neus;

Revisió del gènere Amaranthus L. als Pirineus sud‑orientals

Abstract

Els Amaranthus tenen la seva major diversitat d’espècies al continent americà i concretament als tròpics, no però significa que no en tinguem representants als Pirineus. Els dos tàxons autòctons existents al territori són Amaranthus blitum L. subsp. blitum i Amaranthus graecizans subsp. sylvestris (Vill.) Brenan. Les espècies al·lòctones d’Amaranthus a Europa han anat apareixent en el temps degut al transport de mercaderies i la jardineria. Per altra banda, degut a processos d’hibridació, s’han format nous híbrids fora de la seva àrea nativa, com seria el cas d’ A.×ozanonii Thell. i A.×ralletii Contré; dos tàxons amb problemàtica nomenclatural ja que han rebut diferents noms en la literatura segons el país. En aquest estudi aportem una llista actualitzada de tàxons presents als Pirineus sud‑orientals a partir de la revisió de material d’herbari. S’ha seguit un criteri taxonòmic actualitzat respecte Flora iberica (1990) i Flora dels Països Catalans (1990) pel que fa a l’agregat d’ A. hybridus L. Aportem noves cites dels dos híbrids citats per aquest territori ja que aquests tàxons han aparegut en certs punts i pot ser que ho facin en d’altres, pel fet que són oportunistes i colonitzen ràpidament sòls degradats, abandonats i marginals.

Keywords

Amaranthaceae, Hibridació vegetal, Ciència i tecnologia, Plant hybridization, Hibridación vegetal, Amarantàcies, conferències i ponències

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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