BAJPAI, U. Ultrastructure of the sporoderm in megaspores of some Indian Selaginellas. Journal of Palaeosciences, [S. l.], v. 49, n. (1-3), p. 17–22, 2000. DOI: 10.54991/jop.2000.128. Disponível em: https://www.jpsonline.co.in/index.php/jop/article/view/128. Acesso em: 30 apr. 2024.