KESSLER, M., A. R. SMITH, and M. LEHNERT. “FOUR NEW SPECIES OF SELAGINELLA (PTERIDOPHYTA – SELAGINELLACEAE) FROM BOLIVIA”. Edinburgh Journal of Botany 63, no. 1 (August 4, 2006): 85–93. Accessed September 3, 2026. https://journals.rbge.org.uk/ejb/article/view/1271.