Original chromosome observations of seven species of the genus Centaurea (Sect. Acrocentron) are reported. Of these, counts for 3 taxa viz, C. irritance Wagenitz, C. persica Boiss, and C sosnovskyi Grossh., are new to science. Meiotic behaviour of chromosomes and chiasmata frequency are noted here for the first time Basic chromosome numbers for section are x = 10 and x = 11.