Xiang, Y.-L., Xu, H. and Zhu, R.-L. 2026. Cyathodium tetrasporum (Cyathodiaceae, Marchantiopsida), a new species of liverworts with spores permanently united in tetrads. European Journal of Taxonomy. 1034, 1 (Jan. 2026), 119-132. DOI:https://doi.org/10.5852/ejt.2026.1034.3145.