The pollen morphological structures of Turkish endemic species ofCentaurea armenaBoiss.,C. aucheranaD. C.,C. pyrrhoblepharaBoiss.,C. fenzliiReichardt.,C. hermanniiF. Hermann.,C. kilaeaBoiss.,C. kurdicaReichardt.,C. tchihatcheffiiFisch & Mey. have been studied in detail by means of light (LM) and transmission (TEM) microscopes for the first time. LM examinations show that the pollen grains of eight taxa are more or less spheroidal — subprolate, tricolporate, tectate — perforate, microechinate — scabrate, amb triangular and theJacea-iype is dominant. On the basis of their exine ultrastructureC. pyrrhoblephara, C. tchihatcheffiiandC. aucheranaseem to resemble the Anthermoid-type, but the other five taxa resemble the Helianthoid-type.