齿叶山杨订正

A REVISION OF POPULUS SERRATA

摘要: 将齿叶山杨Populusserrata及其3个变型尖芽齿叶山杨f．acuminati-gemmata、粗齿山杨f．grosseserrata、心形齿叶山杨f．cordata并入汉白杨P．ningshanica。

Abstract: Populus Serrata T. B. Chao et J. S. Chen and its three forms f. acuminati-gemmata T. Hong et J. Zhang, f. grosseserrata T. Hong et J. Zhang, f. cordata T. Hong et J.Zhang are all reduced as a synonym of P. ningShanica C. Wang et Tung.