| Pottiaceae | |
Pterygoneurum cavifolium fo. crossidioides
| Sapégin | Zap. Novorossiisk. Obshch. Estestvoisp. 36: 169 | 1910 |
| Pottiaceae | |
Pterygoneurum cavifolium var. epilosum
| (Brid.) G. Roth | Eur. Laubm. 1: 284 | 1904 |
| Pottiaceae | ** |
Pterygoneurum cavifolium var. gracile
| Wilson ex Paris | Index Bryol. (ed. 2) 4: 123 | 1905 |
| Pottiaceae | |
Pterygoneurum cavifolium var. humile
| J.J. Amann | Bull. Murith. Soc. Valais. Sci. Nat. 39: 351 | 1916 |
| Pottiaceae | ** |
Pterygoneurum cavifolium var. imbricata
| (Schimp.) Paris | Index Bryol. (ed. 2) 4: 123 | 1905 |
| Pottiaceae | |
Pterygoneurum cavifolium var. incanum
| (Nees & Hornsch.) Jur. | Laubm.-Fl. Oesterr.-Ung. 95, 96 | 1882 |
| Pottiaceae | |
Pterygoneurum cavifolium var. longipilosa
| (Poech) Matousch. | Lotos 43: 59 | 1895 |
| Pottiaceae | |
Pterygoneurum cavifolium var. longipilum
| Jur. | Laubm.-Fl. Oesterr.-Ung. 96 | 1882 |
| Pottiaceae | |
Pterygoneurum cavifolium fo. longisetum
| J.J. Amann | Bull. Soc. Vaud. Sci. Nat. 57: 123 | 1929 |
| Pottiaceae | |
Pterygoneurum cavifolium fo. majus
| Röll | Hedwigia 56: 160 | 1915 |
| Pottiaceae | |
Pterygoneurum cavifolium fo. minimum
| Röll | Hedwigia 56: 160 | 1915 |
| Pottiaceae | |
Pterygoneurum cavifolium fo. minus
| Röll | Jahrb. Königl. Akad. Gemeinnütz. Wiss. Erfurt 41: 126 | 1915 |
| Pottiaceae | |
Pterygoneurum cavifolium var. muticum
| Schiffn. | Ann. K. K. Naturhist. Hofmus. 27: 479. 16–18 | 1913 |
| Pottiaceae | |
Pterygoneurum cavifolium var. perraldieri
| (Besch.) Paris | Index Bryol. (ed. 2) 4: 123 | 1905 |
| Pottiaceae | |
Pterygoneurum cavifolium var. polycarpum
| Györffy | Magyar Bot. Lapok 5: 337 | 1907 |