Chorological structure of potentilla (Potentilla L., Rosaceae) of Priamurye and Primorye

The article presents the chorological structure of the Potentilla in the Amur region and Primorsky territory. It shows a distribution of the genus Potentilla species by areal groups, subgroups and geographical elements. The author compares the Potentilla species lists with those of the contiguous territories: Sakhalin, Kuril Islands, Baikal Siberia and North-East China (Heilongjiang province). The analysis of the Potentilla chorological structure shows a high diversity of areal groups different in their genesis, and it reveals the most predominant Asian chorological group, which comprises 24 species. It is found out that the species diversity of the genus Potentilla is the highest in the Pryamurye and Primorye areas of the Russian Far East, and it is closely related to the rest of the Russian Far East, East Asia, and Siberia.