Singh, Shashank Kumar, et al. “New Record of Tetraploid Cytotype Of<i> Ampelopteris Prolifera < I>(retz.) Copel. Pteridophyta from India”. Indian Forester, vol. 140, no. 9, Sept. 2014, pp. 941-2, doi:10.36808/if/2014/v140i9/52371.