Basionym: Agaricus typhae Kalchbr., Fungi Europaei exsiccati Cent. 4: no. 366 (1861) [MB#456829] Obligate synonyms: - Psathyrella typhae (Kalchbr.) A. Pearson & Dennis, Transactions of the British Mycological Society 31 (3-4): 185 (1948) [MB#282859] - Psathyrella typhae var. typhae (Kalchbr.) A. Pearson & Dennis, Transactions of the British Mycological Society 31 (3-4): 185 (1948) [MB#416879] - Psathyra typhae (Kalchbr.) Sacc., Sylloge Fungorum 5: 1067 (1887) [MB#182956] - Drosophila typhae (Kalchbr.) Romagn., Bull. Soc. Linn. Lyon: 51 (1944) [MB#297024] - Pilosace typhae (Kalchbr.) Kuntze, Revisio generum plantarum 3 (3): 504 (1898) [MB#527510] Taxonomic synonyms: Psathyra typhae var. iridis Boud., Bulletin de la Société Mycologique de France 13 (1): 13 (1897) [MB#183132]