Chromosome numbers of some species of the family Lamiaceae from Khakasia

The results of studying the chromosome numbers of 4 species from 3 genera of the family Lamiaceae from the Republic of Khakasia are presented. The material was collected in 2022 in six populations. The species Thymus petraeus (2n = 20) was studied for the first time. The chromosome numbers were determined in Dracocephalum discolor (2n = 12), Nepeta multifida (2n = 12), and Nepeta sibirica (2n = 18) for the first time from the territory of Khakasia. The range of distribution and published data on chromosome numbers are cited for each species. All the studied species are diploids.