[article]
| Titre : |
Gamochaeta impatiens, sp. nov. (Asteraceae : Gnaphalieae), the USA adventive previously identified as G. coarctata |
| Type de document : |
texte imprimé |
| Auteurs : |
Guy Nesom, Auteur |
| Année de publication : |
2022 |
| Article en page(s) : |
48 p. |
| Langues : |
Anglais (eng) |
| Catégories : |
[Espèces (in biblio)] Gamochaeta americana
[Espèces (in biblio)] Gamochaeta coarctata
[Thèmes] Bibliographie
[Thèmes] Clé de détermination
[Thèmes] Morphologie végétale
|
| Mots-clés : |
description botanique |
| Résumé : |
"A morphometric analysis (Freire et al. 2021) found no consistent difference between South American plants identified as Gamochaeta americana (Mill. 1768) Wedd. and Gamochaeta coarctata (Willd. 1803) Kerg. Their observation is confirmed here through examination of general collections as well as the types (from Jamaica and Uruguay, respectively). The widespread and common species in the southeastern USA, however, which mostly has been identified as G. coarctata, is not the same as the South American species. Instead it appears to be an adventive from South America without formal taxonomic recognition –– it is described here as Gamochaeta impatiens Nesom, sp. nov. Of the two, only G. impatiens occurs in the USA but G. americana and G. impatiens both are adventive in various parts of the world." (source : auteur) |
| Type de publication : |
périodique |
| Référence biblio : |
Nesom G., 2022 - Gamochaeta impatiens, sp. nov. (Asteraceae : Gnaphalieae), the USA adventive previously identified as G. coarctata. Phytoneuron, 35 : 48 p. |
| ID PMB : |
71459 |
| En ligne : |
https://www.phytoneuron.net/wp-content/uploads/2022/04/35PhytoN-Gamochaetaameric [...] |
| Format de la ressource électronique : |
document |
| Permalink : |
http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=71459 |
in Phytoneuron > 2022 (Année 2022) . - 48 p.
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