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Auteur Daniel F. Brunton |
Documents disponibles écrits par cet auteur (3)
trié(s) par (Pertinence décroissant(e), Titre croissant(e)) Affiner la rechercheIsoetes ×jermyi hyb nov. (Isoetaceae), a new quillwort (lycophyte) hybrid from western Europe / Daniel F. Brunton in Botany letters, vol. 168, n°4 (Année 2021)
Titre : Isoetes ×jermyi hyb nov. (Isoetaceae), a new quillwort (lycophyte) hybrid from western Europe Type de document : texte imprimé Auteurs : Daniel F. Brunton, Auteur ; Frederick J. Rumsey, Auteur Année de publication : 2021 Article en page(s) : pp. 503-511 Langues : Anglais (eng) Catégories : [Espèces (in biblio)] Isoetaceae Mots-clés : Isoetes ×jermyi plante hybride description aire de répartition Résumé : "Isoetes ×jermyi, hyb nov. (Isoetaceae), is the sterile hexaploid (6x) hybrid quillwort of diploid (2x) I. echinospora x decaploid (10x) I. lacustris. It has been identified from cytologically confirmed plants at several sites in the western United Kingdom and by the morphological determination of herbarium specimens from sites in north-eastern France and SmÃ¥land, Sweden. Clarification is provided for the distinctions of 6x I. ×jermyi from the similar, apparently heptaploid (7x) Pyrenean endemic I. ×brochonii and the misapplied 6x North American endemic I. ×hickeyi. The possibility that enigmatic Irish quillwort I. morei could represent this taxon is discussed and rejected. The frequency of its occurrence in the United Kingdom suggests that I. ×jermyi can be expected to occur regularly within mixed I. echinospora and I. lacustris populations across the wide area of north-western Europe where the two species are sympatric." (source : auteurs) Type de publication : périodique Référence biblio : Brunton D., Rumsey F., 2021 - Isoetes ×jermyi hyb nov. (Isoetaceae), a new quillwort (lycophyte) hybrid from western Europe. Botany letters, 168 (4) : 503-511. ID PMB : 70321 Permalink : http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=70321
in Botany letters > vol. 168, n°4 (Année 2021) . - pp. 503-511[article]Exemplaires(1)
Cote Localisation Disponibilité P0177-6 Brest Disponible
Titre : A terrestrial hybrid quillwort, Isoetes ×angeloi, hyb. nov., (Isoetaceae) from Sicily Type de document : texte imprimé Auteurs : Daniel F. Brunton, Auteur ; Karen L. McIntosh, Auteur ; Paul C. Sokoloff, Auteur Année de publication : 2023 Article en page(s) : pp. 278-284 Langues : Anglais (eng) Catégories : [Espèces (in biblio)] Isoëtes
[Thèmes] Bassin méditerranéenMots-clés : hybride Résumé : "A sterile hybrid between diploids Isoetes gymnocarpa and I. longissima (s.s.) (Isoetaceae) is described from Anguillara, Trapani Province, Sicily, Italy. Although closest in morphology to I. gymnocarpa with which it was growing, the small group of hybrid plants also exhibited features of I. longissima which occurred abundantly within 50 m of the site. In addition to such classic hybrid characteristics as larger plant size (hybrid vigour) and polymorphic, aborted megaspores with ornamentation intermediate between that of the putative parents, the microspores of the hybrid exhibit both the arachnoid ornamentation features of I. gymnocarpa and the echinate features of I. longissima (s.s.). Isoetes ×angeloi, hyb. nov., is the first non-aquatic Isoetes hybrid to be formally described. It is also the first hybrid quillwort to be confirmed from the Mediterranean Basin." (source : auteurs) Type de publication : périodique Référence biblio : Brunton D., McIntosh K., Sokoloff P., 2023 - A terrestrial hybrid quillwort, Isoetes ×angeloi, hyb. nov., (Isoetaceae) from Sicily. Botany letters, 170 (2) : 278-284. ID PMB : 71604 Permalink : http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=71604
in Botany letters > vol. 170, n°2 (Année 2023) . - pp. 278-284[article]Exemplaires(1)
Cote Localisation Disponibilité P0177-6 Brest Disponible
Titre : The taxonomy, status and origin of Isoetes xbrochonii and I. creussensis (Isoetaceae), two Pyrenean endemic taxa Type de document : texte imprimé Auteurs : Daniel F. Brunton, Auteur ; Paul C. Sokoloff, Auteur ; Pere Aymerich, Auteur Année de publication : 2020 Article en page(s) : pp. 391-408 Langues : Anglais (eng) Catégories : [Espèces (in biblio)] Isoëtes brochonii Mots-clés : pteridophyte Résumé : "Isoetes brochonii has possibly been subject ta more taxonomie designations over the last century than any other European quillwort and l'J1ost commonly has been put into synonymy with the widespread I. lacustris. Investigations of herbarium and living material in the present study, however, indieate it to be a sterile (aborted spored) hybrid, I. xbrochonii (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 weil 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 morphologieal characteristies of I. creussensis and I. lacustris is provided, with megaspore ornamentation and microspore size indicated as being partieularly important indicators." (source : auteurs) Type de publication : périodique Référence biblio : Brunton D., Sokoloff P., Aymerich P., 2020 - The taxonomy, status and origin of Isoetes xbrochonii and I. creussensis (Isoetaceae), two Pyrenean endemic taxa. Botany letters, 167 (4) : 391-408. ID PMB : 69941 Permalink : http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=69941
in Botany letters > vol. 167, n°4 (Année 2020) . - pp. 391-408[article]Exemplaires(1)
Cote Localisation Disponibilité P0177-6 Brest Disponible
