Notes on some species of the genus Draba L. (Brassicaceae) in Chukotka

Abstract

Critical notes on 4 species of the genus Draba L. are reported: D. eschscholtzii Pohle et N. Busch, D. borealis DC, D. juvenilis Kom. and D. prozorovskii Tolm. Lectotypes were designated for D. eschscholtzii and D. juvenilis. Two new varieties (D. borealis var. interior V. V. Petrovsky and D. borealis var. arctoborealis V. V. Petrovsky) are described. The key for identification of Chukotian plants of D. borealis and D. juvenilis is suggested. The ranges of all studied Draba species are specified.