de Vargas, Isabel Beatriz, and Annette Droste. “In Vitro Propagation of Cyathea Atrovirens (Cyatheaceae): Spore Storage and Sterilization Conditions”. Revista de Biología Tropical 62, no. 1 (March 20, 2014): 299–308. Accessed May 7, 2024. https://www.revistas.ucr.ac.cr/index.php/rbt/article/view/3661.