altai, fischer, flora rossica, herbarium of the komarov botanical institute, lectotype, ledebour, nomenclature, specimen authenticum, regel, Botany, QK1-989

Allium pallasii Murr. var. nitidulum Fisch. et Regel was assigned species status (A. nitidulum Fisch.) in 1853 by Ledebour in “Flora Rossica”, being considered as a synonym of Allium pallasii but with no description. Then in 1887 E. Regel considered it as a variety: “Allium pallasii Murr. ß nitidulum teste Rgl.” and highlighted its morphological differences, referring to a certain number of herbarium specimens. Herbarium specimens ofAllium pallasii Murr. var. nitidulum Fisch. et Regel which have annotations made by F. B. Fischer, K. F. Ledebour, E. L. Regel and A. I. Schrenk are currently kept in the collections of the Herbarium of the Komarov Botanical Institute of the Russian Academy of Sciences (LE). The identification of the material that Ledebour and Regel studied gave us the opportunity to choose a lectotype and a series of specimena authentica of this variety.