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The systematic position of Ehretia cortesia nom. nov. (_ß Cortesia cuneifolia: Ehretiaceae, Boraginales)inferred from molecular and morphological data

Tipo de material: TextoTextoSeries ; Taxon, 53(4), p.919-923, 2004Trabajos contenidos:
  • Gottschling, M
  • Hilger, H.H
Tema(s): Recursos en línea: Resumen: The systematic position of Argentinean Cortesia cuneifolia (Ehretiaceae, Boraginales)is investigated based both on morphological and on ITS1 sequence data. Inferred from a molecular phylogeny, monotypic Cortesia is not isolated from other taxa of Ehretiaceae as previously suggested, but is nested within Ehretia. Cortesia shares a two-parted endocarp with the Ehretia II subclade (including Ehretia microphylla), which is onsidered as a derived condition within Ehretiaceae and is the most striking indication for a close relationship of the two. ITS1 sequence data and specialised leaf morphology suggest that Ehretia microphylla is probably the sister species of Cortesia cuneifolia, for which a new name is proposed: Ehretia cortesia.
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The systematic position of Argentinean Cortesia cuneifolia (Ehretiaceae, Boraginales)is investigated based both on morphological and on ITS1 sequence data. Inferred from a molecular phylogeny, monotypic Cortesia is not isolated from other taxa of Ehretiaceae as previously suggested, but is nested within Ehretia. Cortesia shares a two-parted endocarp with the Ehretia II subclade (including Ehretia microphylla), which is onsidered as a derived condition within Ehretiaceae and is the most striking indication for a close relationship of the two. ITS1 sequence data and specialised leaf morphology suggest that Ehretia microphylla is probably the sister species of Cortesia cuneifolia, for which a new name is proposed: Ehretia cortesia.

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