Wang, L.-H., Tsegmed, T., Bai, X.-L., Zhao, D.-P. & Chen, G.-L. 2016. Didymodon rufidulus new to Mongolia. — Herzogia 29: 798–800.
Didymodon rufidulus (Pottiaceae) is reported for the first time from Mongolia. A brief description and digital photographs of the species are provided, and its relationship with some closely related species within the genus is discussed.