Développement de quelques Fagaceae japonaises; germination, modèle architectural et systématique

In European and American species of Fagaceae, the growth and the shape of axes can be different between seedlings and trees. Furthermore, in this family, a good connection appears between the architectural model and the genus, because oaks grow according to the Rauh model, chestnut trees according to the Massart model, and beeches according to the Troll model. By studying 13 other species from Japan with unknown architectural traits, we complete our knowledge on growth and morphology of Fagaceae. The architectural characters were described on seedlings 1- to 4-years-old grown in the open air, in an experimental field, and on trees of all ages grown in forests. The relationships in architecture between seedlings and trees and the systematic status of these species in the Fagaceae were analyzed. Keywords: Fagaceae, morphology, architecture, germination, systematic.