New or rarely reported chromosome numbers in taxa of subtribe Artemisiinae (Anthemideae, Asteraceae) from Mongolia

This study encompasses 25 chromosome counts of 18 species in the subtribe Artemisiinae (tribe Anthemideae) of the family Asteraceae, coming from Mongolian populations.Most of them (15 species) belong to the biggest genus of the subtribe, Artemisia, while the others come from two genera very closely related to it: Ajania (two species) and Neopallasia (one species).Twelve counts are new reports, two are not consistent with the previous, and the remnants confirm the scanty previous information.The majority of species have x=9 as basic chromosome number, but there are some x=8 taxa.Ploidy levels range from 2x to 6x.The presence of B-chromosomes has been detected in one species, Ajania fmticulosa.