The article contains information about the type materials of 10 taxa of the genera Polygonum and Rumex (Polygonaceae), kept in M.G. Popov Herbarium of the Central Siberian Botanical Garden SB RAS (NSK). In collections 25 type specimens were found, including the 1 lectotype and 4 isolectotypes, 4 holotypes, 7 isotypes, and 9 paratypes. Typical specimens of Rumex ursinus Maximova saved in the herbarium NS are cited. Two lectotypes, 2 holotypes and 1 isotype from Herbarium LE, as well as 17 samples from virtual collections of foreign herbariums are indicated. The type category is indicated, text of the original label and text of protologue are cited for each specimen.Key words: Polygonaceae, type herbarium specimens, typification, M.G Popov Herbarium, NSK.