par Acheroy, Marc 
;Lefebvre, Claude
Référence Acta oecologica. Oecologia plantarum, 4, 1, page (83-95)
Publication Publié, 1983
;Lefebvre, Claude Référence Acta oecologica. Oecologia plantarum, 4, 1, page (83-95)
Publication Publié, 1983
Article révisé par les pairs
| Résumé : | The variation of 3 of the most obvious morphological characters distinguishing A. tenuis and A. stolonifera show 2 general trends. In some populations the variations of each character are mutually dependent, indicating the hybrid nature of the populations; this occurs in disturbed areas. In other populations the variations, more limited, of the same characters are independent and appear to be included in the normal range of variation of A. tenuis. Relative dwarfism is among natural populations conspicuously related to gross environmental factors (mainly drought) but this relation is in most occurrences only phenotypical. Edaphic ecotypes related to soil acidity, soil content in Ca or Mn are differentiated.-from English summary |
