The tribe Nigelleae Schröd. (Ranunculaceae) worldwide distribution has been studied taxonomically, based on morphological, palynological and seed morphological characters, as well as chromosome counts. Extensive field works have been carried out in Turkey, Greece, Iran, Syria, Lebanon, Portugal and in Northern Cyprus. Moreover, the specimens of major herbaria in Turkey, Ukraine, Russia, Syria and Iran as well in Europe have been examined. This study represents the most comprehensive monograph of the tribe based on field work across its nearly entire distributional range, complemented by examination of over 980 specimens from 25 herbaria and our collections with nomenclatural contributions. |
