The article contains information about 32 type specimens of the names of 14 species of the boraginaceous genera Arnebia (incl. Lithospermum cornutum Ledeb.), Lappula (= Echinospermum), Onosma, Rochelia, and Solenanthus, kept in Herbarium of the Komarov Botanical Institute (LE), and 5 specimens kept in Muséum National d’Histoire Naturelle, Paris, France (P). The type category is indicated, text of the original label and text of the protologue are cited for each specimen. Among the 37 specimens found in the collections, there are 14 lectotypes, 11 isolectotypes, 8 syntypes, 1 isosyntype and 3 authentic specimens. The lectotypes of the names of 6 taxa are designated: Arnebia guttata Bunge, Echinospermum cristatum Bunge, E. consanguineum Fisch. et C. A. Mey., Lithospermum cornutum Ledeb., Rochelia leiocarpa Ledeb., Solenanthus circinnatus Ledeb.