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Mitteleuropäische Wiesenpflanzen als hybridogene Abkömmlinge von mittel - und südeuropäischen Gebirgssippen und submediterranen Sippen / Elias Landolt (1970)

Public Citation est un tiré à part de 80 (1-5) - 1970 (Feddes repertorium) Titre : Mitteleuropäische Wiesenpflanzen als hybridogene Abkömmlinge von mittel - und südeuropäischen Gebirgssippen und submediterranen Sippen Type de document : Tiré à part de revue Auteurs : Elias Landolt (1926-2013) Année de publication : 1970 Importance : 61-66 Langues : Allemand (ger) Catégories : [CBNPMP-Géographique] Europe centrale [CBNPMP-Géographique] Europe du Sud Résumé : Meadow plants of Central Europe resulting from hybridizations between mountain plants of the Alps and submediterranean plants. Various meadow plants growing in Switzerland north of the Alps are intermediate in their morphological and ecological characterstics between an alpine species and a submediterranean species. They cannot be recognised by a single independant character nor can they be distinguished from hybrids between the alpine and the submediterranean species. It is postulated that during the postglacial warming period while the areas north of the Alps were still free of forests, various alpine and submediterranean species could have come together. In the contact zone, hybridizations and gene transgressions took place. From these hybrid swarms resulted the intermediate meadow plants, which were favoured by the influence of farming man. The clearing of forests made possible further hybridizations. Therefore, the morphological and ecological limits between the original species became obscured. Lien pérenne : DOI : 10.1002/fedr.19700810106 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=133284 Landolt, Elias (1926-2013) 1970 Mitteleuropäische Wiesenpflanzen als hybridogene Abkömmlinge von mittel - und südeuropäischen Gebirgssippen und submediterranen Sippen. Feddes repertorium, 80(1-5) : 61-66.

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
18670	Landolt E.	Tiré à part	Centre de documentation	Tirés à part	Consultable

The taxonomy, status and origin of Isoetes ×brochonii and I. creussensis (Isoetaceae), two Pyrenean endemic taxa / Daniel F. Brunton in Botany letters, 167 (4) (2020)

Public Citation [article]  inBotany letters > 167 (4) (2020) . - 391-408 Titre : The taxonomy, status and origin of Isoetes ×brochonii and I. creussensis (Isoetaceae), two Pyrenean endemic taxa Type de document : Imprimé Auteurs : Daniel F. Brunton, Auteur ; Paul C. Sokoloff, Auteur ; Pere Aymerich, Auteur Année de publication : 2020 Article en page(s) : 391-408 Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Endémisme [CBNPMP-Thématique] Ptéridophytes, fougères [CBNPMP-Géographique] Europe du Sud [CBNPMP-Géographique] Pyrénées Mots-clés : Isoetes brochonii Motelay  isoetes creussensis  Isoetes echinospora Durieu, 1861  Isoetes lacustris L. Résumé : Isoetes brochonii has possibly been subject to more taxonomic designations over the last century than any other European quillwort and most commonly has been put into synonymy with the widespread I. lacustris. Investigations of herbarium and living material in the present study, however, indicate it to be a sterile (aborted spored) hybrid, I. ×brochonii (pro sp.), confined to high elevation lakes of the Pyrenees mountains in France, Spain and Andorra. This represents the first uniquely European Isoetes hybrid to be described. Putative parents are diploid I. echinospora and dodecaploid I. creussensis, probably a hybridogenic Pyrenean endemic. The speciation of I. creussensis may well have occurred in Pyrenean refugia during Quaternary glacial-interglacial fluctuations. We found no convincing evidence for the occurrences of decaploid I. lacustris in the Pyrenees where it appears to have been confused with I. creussensis. A comparative table of the distinguishing morphological characteristics of I. creussensis and I. lacustris is provided, with megaspore ornamentation and microspore size indicated as being particularly important indicators. Lien pérenne : DOI : 10.1080/23818107.2020.1790034 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=144701 Brunton, Daniel F., Sokoloff, Paul C., Aymerich, Pere 2020 The taxonomy, status and origin of Isoetes ×brochonii and I. creussensis (Isoetaceae), two Pyrenean endemic taxa. Botany letters, 167(4): 391-408.

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
R19208	P-1824	Revue	Centre de documentation	Revues	Consultable