Ramos, G. J. P.; Souza, B. F. D.; Ribeiro, S. M. M. S.; Moura, C. W. D. N. New Insights into the Diversity and Distribution of the Genus Spirotaenia (Mesotaeniaceae, Streptophyta) in the Neotropics, Including the Description of S. tetrahelica sp. nov.. Phytotaxa 2023, 613, 29-38.