La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	The Deschampsia cespitosa complex in central and northern Europe: a morphological analysis
Auteurs :	J. Chiapella, Auteur
Type de document :	Article
Dans :	Botanical Journal of the Linnean Society (134(4) 2000-12-01)
Article en page(s) :	495-512
Résumé :	Fifty-four exomorphological characters were recorded from 130 herbarium specimens belonging to Deschampsia cespitosa (L.) P. Beauv. subsp. cespitosa, D. alpina (L.) Roem. et Schult, D. bottnica (Wahlenb.) Trim, D. cespitosa subsp. glauca (Hartm.) C. Hartm., D. littoralis (Gaudin) Reuter, D. cespitosa subsp. parviflora (Thuill.) K. Richter and D. wibeliana (Sond.) Pari. These were treated as Operational Taxonomical Units (OTUs) and studied using cluster analysis, principal component analysis and the Mann-Whitney U-test; box plots of selected quantitative characters were also made. To evaluate the relationship between environment and morphology, a redundancy analysis was carried out. Due to extensive overlapping in the diagnostic characters, all the taxa at specific level are reduced to subspecies of Deschampsia cespitosa. Geographical distribution is considered to be of considerable importance in the identification of the taxa.
En ligne :	https://doi.org/10.1111/j.1095-8339.2000.tb00547.x

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