Abstract: On the basis of field investigation and specimen observation, and information of SEM leaf epidermal micromorphology, the taxonomic revision of Cotoneaster microphyllus Wall.ex Lindl.was carried out. As a result, fifteen specific names belonging to three series(Series Procumbens Klotz;Series Alpigeni和Series Marginati Klotz),are reduced to be synonyms of C.microphyllus Wall. ex Lindl.

Key words: Rosaceae

摘要： 据有关模式和产地标本的研究,结合野外调查、叶表皮微形态观察结果,对小叶子(Cotoneaster microphyllus Wall.ex Lindl.)进行了分类学修订,将分属3系(Series Procumbens Klotz;Series Alpigeni和Series Marginati Klotz)的15个名称归并作小叶子的同物异名.

关键词: 蔷薇科, 子属, 小叶枸子, 叶表皮微形态, 分类修订