Article

The chromosome number of seven wild Moroccan species belonging to the Asteraceae family has been investigated for the first time in the region of Rabat-Salé-Kinétra (Morocco), using the root-tip squash. All these species show a diploid chromosome number which ranged from 2n = 18 to 2n = 34. Thus, we obtained for the following species: Centaurea calcitrapa 2n = 20, Cichorium intybus 2n = 18, Glebionis segetum 2n = 18, Pallenis spinosa subsp. maroccana 2n = 10, Lactuca serriola 2n = 18, Phagnalon rupestre 2n = 18, Silybum marianum 2n = 34. These findings are discussed and compared with other results from elsewhere.