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Auteur Lubomir ADAMEC L. |
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Ecophysiological characteristics of turions of aquatic plants : a review / Lubomir ADAMEC L. / 2018
Titre : Ecophysiological characteristics of turions of aquatic plants : a review Type de document : texte imprimé Auteurs : Lubomir ADAMEC L., Auteur Année de publication : 2018 Importance : 64-77 Mots-clés : Potamogeton crispus germination caractéristiques écologiques Index. décimale : Article (dossiers suspendus) ARTI Saisie BD Flore : Rien à saisir Réservation
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Cote Section Support Localisation Code-barres Disponibilité ARTI-X28546 ARTI - Article (dossiers suspendus) Article CBN du Massif central X28546#1 Disponible Pollen morphology of European bladderworts (Utricularia L., Lentibulariaceae) / Mario BERETTA M. / 2014
Titre : Pollen morphology of European bladderworts (Utricularia L., Lentibulariaceae) Type de document : texte imprimé Auteurs : Mario BERETTA M., Auteur ; Graziella RODONDI G., Auteur ; Lubomir ADAMEC L., Auteur ; Carlos ANDREIS C., Auteur Année de publication : 2014 Importance : 22-30 Langues : Français (fre) Mots-clés : Utricularia, Pollen morphology, Perforate, Psilate, Fossulate, Taxonomy Résumé : The pollen morphology of the seven known European bladderworts: Utricularia australis, Utricularia bremii, Utricularia intermedia, Utricularia minor, Utricularia ochroleuca, Utricularia stygia and Utricularia vulgaris was studied.
Their pollen grains, coming from different populations, were investigated using both lightmicroscopy and scanning electron microscopy to give data on size, shape (P/E ratio), number of colpori and exine ornamentation: important diagnostic characteristics for Utricularia pollen.
Within the investigated species, the pollen grains were usually medium sized (~30 μm), sub-isopolar, radially symmetric and zonocolporate. For the non-fruiting species Utricularia bremii, Utricularia stygia and Utricularia ochroleuca, the grains were often malformed, asymmetric or in the form of gigapollen or micropollen. A significant number of gigapollen grains were observed in Utricularia stygia while micropollen was observed in Utricularia ochroleuca. The shape of the normal grains was variable from suboblate to prolate spheroidal and they were (10)-11-18-(19)-zonocolporate. The prevalent ornamentations were psilate (on mesocolpi) and fossulate (on apocolpium) except for Utricularia bremii, which had a somewhat perforate ornamentation. The pollen of Utricularia stygia is described here for the first time. A pollen key, based on these micromorphological data, is presented for European Utricularia species.Saisie BD Flore : Rien à saisir Exemplaires
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