[article]
| Titre : |
Hybrids within Equisetum subgenus Hippochaete in England and Wales |
| Auteurs : |
P. Jepson, Auteur ; Markus Lubienski, Auteur ; Peter Llewellyn, Auteur ; Ronald Viane, Auteur |
| Année de publication : |
2013 |
| Article en page(s) : |
pp. 47-58 |
| Langues : |
Anglais (eng) |
| Catégories : |
[ZG] Royaume-Uni
[Espèces (in biblio)] Equisetum
[Espèces (in biblio)] Equisetum ramosissimum Desf.
[Espèces (in biblio)] Equisetum x meridionale
[Espèces (in biblio)] Equisetum x trachyodon
|
| Résumé : |
"Hybrid horsetails in Equisetum subgenus Hippochaete are superficially similar. Distinguishing the different taxa depends on the micromorphology of the stem ridges. In the case of the hybrids E. ×trachyodon (E. hyemale×E. variegatum) and E. ×meridionale (E. ramosissimum×E. variegatum) both inherit silica tubercles that run vertically along the stem ridges but only E. ×meridionale has silica cross-bands on the stem ridges; these are difficult to discern in the field, even with a ×20 hand-lens and good light. The past misidentification of some populations of E. ×meridionale as E. ×trachyodon in the British Isles is therefore understandable. Recorded populations of E. ×trachyodon in England are re-assessed, with some found to be E. ×meridionale. Associated species and habitats are compared. Using flow cytometry, all known British populations of E. ×meridionale were determined to be diploid. An identification key which incorporates recent knowledge of the morphology of the species and hybrids in subgenus Hippochaete in Europe is presented." (source : auteurs) |
| Type de publication : |
article de livre |
| Référence biblio : |
Jepson P., Lubienski M., Llewellyn P., Viane R., 2013 - Hybrids within Equisetum subgenus Hippochaete in England and Wales. In : . [s.l.], 47-58. |
| ID PMB : |
57093 |
| DOI : |
10.1179/2042349712Y.0000000017 |
| Permalink : |
http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=57093 |
in New Journal of botany > vol. 3, n°1 (Année 2013) . - pp. 47-58
[article]
|
trié(s) par (Pertinence décroissant(e), Titre croissant(e)) Affiner la rechercheHybrids within Equisetum subgenus Hippochaete in England and Wales in New Journal of botany, vol. 3, n°1 (Année 2013)
