Williams DM. Notes on the diatom collection of the Natural History Museum, London (BM) IX: Campylodiscus hardmanianus, with a discussion on synapomorphy and the poverty of molecular monophyly. Phytotaxa [Internet]. 2023 Dec. 4 [cited 2025 Dec. 5];629(1):53-64. Available from: https://phytotaxa.mapress.com/pt/article/view/phytotaxa.629.1.4