1. Cheng C-Y, Yang C-S, Hwang S-M (1988) Aristolochiaceae. In: Kiu H-S, Ling Y-R (eds) Flora Reipublicae Popularis Sinicae, vol 24. Science Press, Beijing, pp 159–245
2. Di W-Z, Yu Z-Y (1989) State-protected rare and endangered plants in Shaanxi Province. Northwest University Press, Xi’an
3. Doyle JJ, Doyle JL (1987) A rapid DNA isolation procedure for small quantities of fresh leaf tissue. Phytochem Bull 19:11–15
4. Ellis JR, Burke JM (2007) EST-SSRs as a resource for population genetic analyses. Heredity 99:125–132
5. Freeland JR (2005) Molecular ecology. Wiley, Chichester, West Sussex, UK