fag15 | The concept of the Tilio-Acerion presented here is much narrower than in most previous studies. Therefore, it might be advisable to reject the name Tilio-Acerion and to conserve the name Lunario-Acerion Moor 1973 for the cool temperate maple forests. Yet we refrain from putting forward a formal proposal to this effect at this stage since the delimitation of the alliances within the Aceretalia pseudoplatani needs further study. (W. Willner, J.-P. Theurillat) L. Mucina and M. Chytrý do not support this suggestion since the use of the name Tilio-Acerion did not show serious signs of misinterpretation in the past.