Investigations of the type materials of Achnanthes parallela J.R.Carter and Achnanthes petersenii Hustedt (Bacillariophyceae) with comments on the genus Rossithidium Round & Bukhtiyarova
I. Jüttner, C. E. Wetzel, D. M. Williams, and L. Ector
Botany Letters, vol. 167, no. 1, p. 57-69, 2020
doi:10.1080/23818107.2019.1668297