عباس قلی پور - Assistant Prof., Payam-e Noor University, Sari, Mazandaran, Iran (E-mail: abbas.gholipuor@gmail.com)
مسعود شیدایی - Prof., Department of Botany, Faculty of Biological Sciences, Shahid Beheshti University, Tehran, Iran
ولی اله مظفریان - Associate Prof., Botany Deartment, Research Institute of Forest & Rangelands, Tehran, Iran

By studying the type specimens and field works from locus classicus, it became clear that the two species of Silene eremicana and S. goniocaula which are considered as conspecific in the Flora Iranica are distinct species. Silene commelinifolia var. isophylla is considered as a synonym of S. eremicana. The numbers of herbarium specimens (voucher) are emended and the descriptions of each species are completed. The chromosome number of S. eremicana, ۲n=۴x=۴۸ is reported for the first time. The karyotype of each species is presented.

Species descriptions, habitat, type, Alvand