Reconciling morphology and phylogeny allows an integrative taxonomic revision of the giant sedges of Carex section Rhynchocystis (Cyperaceae) / Mónica Míguez in Botanical Journal of the Linnean Society, vol. 188, n°1 (Année 2018)

Public [article]  inBotanical Journal of the Linnean Society > vol. 188, n°1 (Année 2018) . - pp. 34-58 Titre : Reconciling morphology and phylogeny allows an integrative taxonomic revision of the giant sedges of Carex section Rhynchocystis (Cyperaceae) Type de document : Livre Auteurs : Mónica Míguez, Auteur ; Santiago Martin-Bravo, Auteur ; Pedro Jiménez -Mejías, Auteur Année de publication : 2018 Article en page(s) : pp. 34-58 Langues : Anglais Catégories : [Espèces (in biblio)] Carex [Espèces (in biblio)] Carex pendula Mots-clés : espèce cryptique  morphométrie  morphologie  congruence  analyse multivariée  Paléarctique occidental Résumé : "Species delimitation in Carex section Rhynchocystis has remained relatively constant through its taxonomic history. The section is currently composed of five species distributed in the Western Palaearctic (C. microcarpa and C. pendula) and subSaharan Africa (C. bequaertii, C. mossii and C. penduliformis). Recent phylogenetic studies revealed that the monophyly of C. bequaertii and C. mossii was not well supported and that C. pendula comprises two divergent sister lineages. To evaluate the taxonomic significance of these unexpected results, we performed a rigorous statistical procedure based on morphometrics. We found morphological support for our molecular background, uncovering (1) characters that reflect the evolution of the group and were overlooked by traditional taxonomy and (2) the overlapping of some previously considered diagnostic characters. Our results suggest five species, but only C. microcarpa and C. penduliformis were supported in their traditional concepts. The two lineages of C. pendula corresponded to two morphologically distinct, biogeographically congruent groups: C. pendula s.s. in the western part of the range and C. agastachys in the eastern part. In congruence with the molecular results, C. bequaertii and C. mossii were weakly morphologically differentiated and thus better treated as subspecies of a single species. We propose a revised taxonomic treatment for the group." (source : auteurs) Type de publication : périodique Référence biblio : Míguez M., Martin-Bravo S., Jiménez -Mejías P., 2018 - Reconciling morphology and phylogeny allows an integrative taxonomic revision of the giant sedges of Carex section Rhynchocystis (Cyperaceae). Botanical Journal of the Linnean Society, 188 (1) : 34-58. ID PMB : 69473 DOI : 10.1093/botlinnean/boy040 Permalink : http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=69473 [article]

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Typification of 18th Century names in Carex sect. Rhynchocystis (Cyperaceae) : Carex pendula and allies / Pedro Jiménez -Mejías in Taxon, vol. 66, n°4 (Année 2017)

Public [article]  inTaxon > vol. 66, n°4 (Année 2017) . - pp. 973-975 Titre : Typification of 18th Century names in Carex sect. Rhynchocystis (Cyperaceae) : Carex pendula and allies Type de document : Livre Auteurs : Pedro Jiménez -Mejías, Auteur ; Mónica Míguez, Auteur ; Mark A. Spencer, Auteur ; Charles E. Jarvis, Auteur ; Santiago Martin-Bravo, Auteur Année de publication : 2017 Article en page(s) : pp. 973-975 Langues : Anglais Catégories : [Espèces (in biblio)] Carex pendula Mots-clés : épitypification  Hudson  lectotypification  Linnée  Scopoli  Carl Ludwig Willdenow Résumé : "According to recent molecular and morphological studies, the apparently homogeneous Carex pendula has been shown to include two different species. One species is distributed across western Europe and the Mediterranean, whereas the other ranges from central and eastern Europe to the Caucasus and northern Iran. Three different names have been considered synonyms of C. pendula: C. agastachys, C. maxima, and C. mutabilis. Here C. pendula is shown to apply to the western taxon, and C. agastachys to be the oldest name for the eastern taxon. An epitype is designated for C. pendula given the insufficient level of detail provided by the previously designated neotype." (source : auteurs) Type de publication : périodique Référence biblio : Jiménez -Mejías P., Míguez M., Spencer M., Jarvis C., Martin-Bravo S., 2017 - Typification of 18th Century names in Carex sect. Rhynchocystis (Cyperaceae) : Carex pendula and allies. Taxon, 66 (4) : 973-975. ID PMB : 68939 DOI : 10.12705/664.12 Permalink : http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=68939 [article]

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