Lectotypification and Nomenclatural Correction of <i>Berberis lambertii</i> (Berberidaceae), an Endemic Shrub From the Western Himalaya, India

ABSTRACT Berberis lamberti (Berberidaceae) is an endemic shrub from Western Himalaya validly described in 1921 (as “ Berberis lamberti ” here orthographically corrected according to the Art. 60.1 and the Recommendation 60C.1(a) of Madrid Code ) without the indication of the holotype. According to the Art. 9.3, a lectotypification is, therefore, required and it is addressed in the present paper. Among the two syntypes found (specimens K000644948 and K000644940, mounted on a single sheet which includes five twigs), collected by W.J. Lambert in 1820, the former (specifically the two branches on the left side of the sheet) is designated as lectotype of the name B. lamberti being well‐preserved and also matching the original description and current concept of the species; the specimen K000644940, which is collected in a different day (October 18, 1820), remains a syntype. The fifth branch (occurring on the center of the sheet) cannot be ascribed with certainty with any of the two barcordes. This fixing supports ongoing taxonomic and conservation efforts.