Two new species of Russula from Northeast China

Two new species of the genus Russula from northeastern China are described and illustrated based on phylogenetic analysis of internal transcribed spacer (ITS) ribosomal DNA sequences and morphological examination. These two new species are R. heilongjiangensis (from subsect. Maculatinae) and R. khinganensis (from subsect. Puellarinae). The morphological and molecular analyses support their taxonomic classification. A comparison of these new species and other similar species is also addressed in this paper.