Syn.: Geophila rugosoannulata (Farl. ex Murrill) Kühner & Romagn.; Naematoloma ferrei (Bres.) Singer; Naematoloma rugosoannulatum (Farl. ex Murrill) S. Ito; Naematoloma rugosoannulatum f. rugosoannulatum (Farl. ex Murrill) S. Ito; Psilocybe rugosoannulata (Farl. ex Murrill) Noordel.; Stropharia ferrii Bres.; Stropharia rugosoannulata f. rugosoannulata Farl. ex Murrill