Zidarova, R., Haan, M.D., Ivanov, P. & Vijver, B.V.D. (2026) Observations and lectotypification of Achnanthes gainii (M. Peragallo) A. Mann, a forgotten Antarctic diatom species, with comments on A. bongrainii (M. Peragallo) A. Mann and the Antarctic records of A. groenlandica (Cleve) Grunow. Phytotaxa 759 (1): 45–57. https://doi.org/10.11646/phytotaxa.759.1.4