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A multivariate and cladistic study of Vicia L. ser. Vicia (Fabaceae) based on analysis of morphological characters / Mark van de Wouw in Plant Systematics and Evolution, vol. 237 (Année 2003)

Public [article]  inPlant Systematics and Evolution > vol. 237 (Année 2003) . - pp. 19-39 Titre : A multivariate and cladistic study of Vicia L. ser. Vicia (Fabaceae) based on analysis of morphological characters Type de document : texte imprimé Auteurs : Mark van de Wouw, Auteur ; N. Maxted, Auteur ; B.V. Ford-Lloyd, Auteur Année de publication : 2003 Article en page(s) : pp. 19-39 Langues : Anglais (eng) Catégories : [Espèces (in biblio)] Vicia [Thèmes] Taxonomie Mots-clés : caractère morphologique  aire de répartition Résumé : "Vicia ser. Vicia, which includes the Vicia sativa aggregate, was studied by observing morphological variation. The study is an attempt to resolve the taxonomic relationships within the Vicia sativa aggregate by novel investigations along with a synthesis of the results obtained by previous researchers. The study has included some accessions and characters used previously, but has drawn accessions from a wider geographical range than has been attempted previously. Cluster analysis on the basis of 53 morphological characters justified the delimitation of four species within the series and six subspecies within the Vicia sativa aggregate. Accessions from South Asia could easily be incorporated in the classification, but some of the accessions from North Africa showed morphological differences. The morphometric data were coded using the gap weighting method of Thiele (1993) and used in a phylogenetic analysis to study the relationships between the taxa. The phylogenetic analysis, using 33 variables, showed Vicia pyrenaica closely related to Vicia sativa subsp. amphicarpa. A dichotomous key and a multi-access key to aid the identification of the taxa in the series are presented." (source : auteurs) Type de publication : périodique Référence biblio : van de Wouw M., Maxted N., Ford-Lloyd B.-V., 2003 - A multivariate and cladistic study of Vicia L. ser. Vicia (Fabaceae) based on analysis of morphological characters. Plant Systematics and Evolution, 237 : 19-39. ID PMB : 68975 Permalink : http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=68975 [article]

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Evolution, phylogeography, and taxonomy within the Viola alba complex (Violaceae) / Thomas Marcussen in Plant Systematics and Evolution, vol. 237 (Année 2003)

Public [article]  inPlant Systematics and Evolution > vol. 237 (Année 2003) . - pp. 51-74 Titre : Evolution, phylogeography, and taxonomy within the Viola alba complex (Violaceae) Type de document : texte imprimé Auteurs : Thomas Marcussen, Auteur Année de publication : 2003 Article en page(s) : pp. 51-74 Langues : Anglais (eng) Catégories : [Espèces (in biblio)] Viola alba [Thèmes] Taxonomie Mots-clés : morphométrie  allozyme  phylogeographie  évolution Résumé : " Taxa of the Viola alba complex were investigated using allozymes and morphometry. A taxonomic revision is presented. A wide delimitation of V. alba with only three morphological and geographical subspecies is suggested: (1) ssp. dehnhardtii distributed in the Mediterranean eastwards to Turkey; (2) ssp. alba flanking ssp. dehnhardtii in the north and east; and (3) ssp. cretica endemic to Crete. Ssp. cretica, up to now treated as a separate species, is particularly close to ssp. dehnhardtii. Viola cadevallii (NW Mediterranean) is included in the synonymy of ssp. dehnhardtii. Ssp. scotophylla (S Europe), ssp. thessala (Balkan), V. armena (Turkey), and V. besseri (Caucasus) are reduced to synonyms of V. alba ssp. alba. Viola pentelica (Greece) might represent transitional forms between ssp. alba and ssp. dehnhardtii. Glacial refugia for ssp. alba are suggested from the eastern Mediterranean via Turkey to the Caucasus, for ssp. dehnhardtii in the Mediterranean area in general, and for ssp. cretica in Crete. A key to the subspecies is provided. Taxonomic recombination: Viola alba Bess. ssp. cretica (Boiss. & Heldr.) Marcussen, comb. nov." (source : auteur) Type de publication : périodique Référence biblio : Marcussen T., 2003 - Evolution, phylogeography, and taxonomy within the Viola alba complex (Violaceae). Plant Systematics and Evolution, 237 : 51-74. ID PMB : 69162 Permalink : http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=69162 [article]

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