Abstract
Although the majority of Linnaean Potentilla names (Rosaceae) have been already typified, the type of P. acaulis L. remains uncertain. All material related to P. acaulis were traced in herbaria LINN and PR, and their origin and time of inclusion into Linnaeus’ herbarium are discussed. A lectotype is selected from the original material examined by Linnaeus and now deposited in PR. The change in species concept in later Linnaean works and its importance for interpretation of the extant herbarium material related to the name is also discussed.