| Cephaloziellaceae | |
Cephaloziella arctica var. alpina
| (Douin) R.M. Schust. | Bull. Natl. Mus. Canada 122: 31 | 1951 |
| Cephaloziellaceae | |
Cephaloziella arctica subsp. arctica
| | | |
| Cephaloziellaceae | |
Cephaloziella arctica var. arctica
| | | |
| Cephaloziellaceae | ** |
Cephaloziella arctica var. fallax
| (Douin) S.W. Arnell | Ill. Moss Fl. Fennoscandia. I. Hepat. 75 | 1956 |
| Cephaloziellaceae | ** |
Cephaloziella arctica var. kaalaasii
| (Douin) S.W. Arnell | Ill. Moss Fl. Fennoscandia. I. Hepat. 75 | 1956 |
| Cephaloziellaceae | ** |
Cephaloziella arctica var. macrantha
| (C.E.O. Jensen) S.W. Arnell | Ill. Moss Fl. Fennoscandia. I. Hepat. 74 | 1956 |
| Cephaloziellaceae | |
Cephaloziella arctica var. scabra
| S.W. Arnell | Bot. Not. 1950: 86 | 1950 |
| Cephaloziellaceae | |
Cephaloziella arctica subsp. subantarctica
| R.M. Schust. | Nova Hedwigia 22(1--2): 197 | 1971 [1972] |
| Cephaloziellaceae | ** |
Cephaloziella arctica fo. submersa
| S.W. Arnell | Ill. Moss Fl. Fennoscandia. I. Hepat. 75 | 1956 |