Abstract
Herbarium collections are one of the most important tools for studying the biological diversity of the flora, giving an idea of the morphological structure of plants and floristic composition of biocenoses. The research work is devoted to the study of taxonomic composition of the subclass Lamiaceae (Lamiidae) in the herbarium collection of the Department of "Biology" SKU named after M. Kozybaev. The study is based on the inventory, determination of taxonomic identity of herbarium specimens. According to the results of the study 4 families, 34 genera and 50 species were described. The article presents data on the species composition of representatives of 4 families: Boraginaceae Juss., Labiatae Juss., Solanaceae L. and Scrophulariaceae Juss. The analysis of the collected data allowed to establish the degree of herbarization coverage of the species composition of the subclass Lamiidae in the North-Kazakhstan region and indicated the trajectories of herbarium fund completion.