Abstract:

In this study, 23 OTU’s including all the species of Viola in Hebei  Provin-

ce were used in numerical taxonomic  treatment.  According to the  principle of clustering line

method, a few lines which divide sections, subsections and  species were   respectively decided.

The result of numerical research roughly coincides with the scheme of 3 sections and 4 subsec-

tions proposed by Gingins et al.. Based on the value of distance coefficient, morphological

characters and geographical distribution, the species V. pekinensis is reduced as a synonym of

V. mongolica.  The writer compared section Melanium with other sections with characters of

morphology, palynology, cytology, phytogeography as well as pollination ecology and sugges-

 ted a revision of systematic position of section Melanium.

Key words: Hebei province, Viola, Taxonomy