Once more: Intraspecific polyploidy of Parnassia palustris var. multiseta (Saxifragaceae sensu lato) collected in the Altai Mountains in Russia and Mongolia

Abstract

Parnassia palustris var. multiseta collected in the Altai Mountains in Russia and Mongolia showed four cytotypes with the respective chromosome numbers of 2n=18, 27, 36 and 45. They could be diploid, triploid, tetraploid and pentaploid respectively, if the basic chromosome number of x=9 was accepted. The chromosome number of 2n=45 was reported here for the first time in the Russian plants studied, while the other chromosome numbers verified the previous reports.