CHROMOSOME NUMBERS IN SOME TRIPLEUROSPERMUM (ASTERACEAE) SPECIES FROM IRAN

This study includes 4 reports of chromosome counts in Tripleurospermum Sch. Bip. belonging to the tribe Anthemideae of the family Asteraceae from Iran. Confirming the reported base number of x=9 for this genus, the species studied include diploid and tetraploid species. Chromosome counts for three species are reported for the first time from Iran.