In this study, we investigated the chromosome numbers of some endemic species distributed in East and South-East Iran. The mitotic chromosome counts were presented for the first time for six species in three angiosperm families including: Linaria iranica (2n=12), Nanorrhinum campyloceras (2n=18), Chaenorhinum grossecostatum (2n=24) (Plantaginaceae), Gaillonia bruguieri (Rubiaceae) (2n=22), Nepe...

The meiotic chromosome counts are reported in 10 species of the genus Cousinia including: C. adenostegia, C. antonowii, C. chaetocephala, C. dasylepis, C. eriobasis, C. freynii, C. prasina, C. rechingerorum, C. termei and C. trachyphyllaria from Iran. Specimens have been collected from different parts of Iran out of which, eight species are considered to be new and two provide confirmation of t...

chromosome number, meiotic behavior, and pollen viability were analyzed in 2 species of genus solenanthus, s. stamineus (desf.) wettst. and s. circinnatus ledeb, from iran. this report is the first cytogenetic analysis of these species. all taxa are diploid and possess 2n = 2x = 24 chromosome number, consistent with the proposed base number of x = 12. although this taxon displayed regular bival...