Akhani, H. 1998: Plant Biodiversity of Golestan National Park, Iran. -Stapfia 53: 1-411.
Altschul, S. F., Gish, W., Miller, W., Myers, E. W. & Lipman, D. J. 1990: Basic local alignment search tool. -Journal of Molecular Biology 5: 403-410.
Bardsiri, A., Naderi, R. & Amirahmadi, A. 2017: Plant diversity of Sarband Hunting Prohibited Area (Dibaj, Semnan Province). -Taxonomy and Biosystematics 9 (31): 1-28 (in Persian).
Doyle, J. J. & Doyle, J. L. 1987: A rapid DNA isolation procedure for small quantities of fresh leaf tissue.
-Phytochemical Bulletin 19: 11-15.
Felsenstein, J. 1985: Confidence limits on phylogenies: an approach using the bootstrap. -Evolution 38: 783-791.
Huang, J. -F., Zhang, M. -L. & Cohen, J. I. 2013: Phylogenetic analysis of Lappula Moench (Boraginaceae) based on molecular and morphological data. -Plant Systematics and Evolution 299: 913-926.
Khatamsaz, M. 2002: Lindelofia. In: Assadi, M., Khatamsaz, M. & Maassoumi A. A. (Eds.), Flora of Iran no. 39: 440-442. Research Institute of Forests and Rangelands. -Tehran.
Nasir, Y. J. 1989: Boraginaceae. In: Ali, S. I. & Nasir, Y. J. (Eds.), Flora of Pakistan no. 191: 1-200. Pakistan Agricultural Research Council.
-Islamabad.
Nylander, J. A. A. 2004: MrModeltest v2. Program distributed by the author. Evolutionary Biology Center, Uppsala University. -Uppsala.
Popov, M. 1953: Boraginaceae. In: Komorov, V. L. (Ed.), Flora of the USSR no. 19: 97-691. Izdatel’stvo Akademi Nauk SSSR. -Leningrad.
Posada, D. & Buckley, T. R. 2004: Model selection and model averaging in phylogenetics: advantages of akaike information criterion and Bayesian approaches over likelihood ratio tests. -Systematic Biology 53: 793-808.
Riedl, H. 1967: Lindelofia. In: Rechinger, K. H. (Ed.), Flora Iranica no. 48: 137-141. Akademische Druck- u. Verlagsanstalt. -Graz.
Ronquist, F., Teslenko, M., van der Mark, P., Ayres, D. L., Darling, A., Hohna, S., Larget, B., Liu, L., Suchard, M. A. & Huelsenbeck, J. P. 2012: MrBayes 3. 2: efficient bayesian phylogenetic inference and model choice across a large model space. -Systematic Biology 61: 539-542.
Sang, T., Crawford, D. J. & Stuessy, T. 1995: Documentation of reticulate evolution in peonies (Paeonia) using internal transcribed spacer sequences of nuclear ribosomal DNA: implication for biogeography and concerted evolution.
-Proceedings of the National Academy of Sciences of the United States of America 92: 6813-6817.
Serrano, M., Carbajal, R., Pereira Coutinho, A. & Ortiz, S. 2016: Two new genera in the Omphalodes group (Cynoglosseae, Boraginaceae). -Nova Acta Científica Compostelana (Bioloxía) 23: 1-14.
Swofford, D. L. 2002: PAUP*, phylogenetic analysis using parsimony (*and other methods). Version 4. -Sunderland Massachusetts Sinauer Associates.
Thompson, J. D., Higging, D. G. & Gibson, T. J. 1994: Clustal W: Improving the sensitivity of progressive multiple sequnce alighnment through sequence weighting, position, specific gap penalties and weight matrix choice. -Nucleic Acids Research 22: 4673-4680.
White, T. J., Bruns, T., Lee, S. & Taylor, J. 1990: Amplification and direct sequencing of fungal ribosomal RNA genes for phylogenetics. In: Innis, D. H. (Ed.), PCR protocols: a guide to methods and applications pp. 315-322. Academic Press. - San Diego.
Zhu, G., Riedl, H. & Kamelin, R. 1995: Boraginaceae. In: Zhengyi, W., Raven, P. H. & Deyuan, H. (Eds.), Flora of China no. 16: 329-427. Missouri Botanical Garden. -St. Louis.