Crocus thracicus is described as a new species from Thrace, the European part of Turkey. The white form of this species was wrongly referred to an albino form of C. chrysanthus by Mathew in the Flora of Turkey. It grows in open stony places and in sparse Quercus sp. and Paliurus spina-christi clearings at elevations between 45-170 m. It is compared with the morphologically similar C. alexandri and C. weldenii. A description, detailed illustrations, photograps of metephase plate, karyotype and idiogram of new species are presented.

Centaurea ziganensis Yüzb., M. Bona & İ. Genç, a new species is described and illustrated from Gümüşhane province, NE Turkey. The new species grows in rocky places on the south face of Zigana Mountains, and is closely related to C. drabifolioides, from which it differs mainly in stem, achene and phyllary appendage characters. Micromorphological structures of achenes and karyological features of C. ziganensis and C. drabifolioides were examined in this study.

Anatolia hosts 14 of the 22 taxa of genus Galanthus L. The phylogenetic relationships of Galanthus species were explored using DNA sequence data from both nuclear and chloroplast DNA of 70 specimens covering all subdivisions of Galanthus present in Turkey. Our data showed that species of the same geography clustered together phylogenetically, in contrast to the presently recognized taxonomy based on morphological characters. The 5.8S rRNA sequence data by itself is sufficiently informative for constructing phylogenetic trees. Our data confirm the identity of Galanthus koenenianus as a new taxon, well separated from G. alpinus; both are clustered within subseries Viridifolii, rather than within subseries Glaucaefolii in contrast to previous suggestions, but in accordance with their geographical occurrence. G. trojanus also forms a distinct branch within subseries Glaucaefolii. G. krasnovii diverged out of all other Galanthus taxa as a separate branch in all phylogenetic trees. Samples collected based on morphological characters as G. nivalis were clearly different from G. nivalis based on the sequence data in GenBank. Sequencing data also revealed that the G. xvalentinei from locus classicus (ISTF; SYZB 3008) significantly differed from all other Galanthus specimens distributed in Thrace known as G.xvalentinei.

Centaurea ziganensis Yüzb., M. Bona & İ. Genç, a new species is described and illustrated from Gümüşhane province, NE Turkey. The new species grows in rocky places on the south face of Zigana Mountains, and is closely related to Centaurea drabifolioides, from which it differs mainly in stem, achene and phyllary appendage characters. Micromorphological structures of achenes and karyological features of Centaurea ziganensis and Centaurea drabifolioides were examined in this study.