| Thuidiaceae | |
Ptychodium abbreviatum
| J.J. Amann | Bull. Murith. Soc. Valais. Sci. Nat. 40: 56 | 1919 |
| Thuidiaceae | |
Ptychodium affine
| Limpr. | Laubm. Deutschl. 2: 802 | 1895 |
| Thuidiaceae | |
Ptychodium albidum
| J.J. Amann | Bull. Murith. Soc. Valais. Sci. Nat. 40: 56 | 1919 |
| Thuidiaceae | |
Ptychodium bicolor
| (Kindb.) G. Roth | Eur. Laubm. 2: 414. 60 f. 1 | 1904 |
| Thuidiaceae | |
Ptychodium decipiens
| Limpr. | Laubm. Deutschl. 2: 799 | 1895 |
| Thuidiaceae | * |
Ptychodium denudatum
| (Kindb.) G. Roth | Eur. Laubm. 2: 414 | 1904 |
| Thuidiaceae | |
Ptychodium erectum
| Culm. | Rev. Bryol. 11: 89 | 1884 |
| Thuidiaceae | |
Ptychodium hakoniense
| (Mitt.) Paris | Index Bryol. 1055 | 1898 |
| Thuidiaceae | |
Ptychodium hyperboreum
| (Kindb.) Müll. Hal. | Index Bryol. Suppl. 288 | 1900 |
| Thuidiaceae | |
Ptychodium indicum
| (Dixon) J.R. Rohrer | Lindbergia 12: 35 | 1986 |
| Thuidiaceae | |
Ptychodium leucodonticaule
| Müll. Hal. | Nuovo Giorn. Bot. Ital., n.s. 4: 268 | 1897 |
| Thuidiaceae | |
Ptychodium oligocladon
| Limpr. | Laubm. Deutschl. 2: 801 | 1895 |
| Thuidiaceae | |
Ptychodium pallescens
| J.J. Amann | Bull. Murith. Soc. Valais. Sci. Nat. 40: 55 | 1919 |
| Thuidiaceae | |
Ptychodium perattenuatum
| S. Okamura | J. Coll. Sci. Imp. Univ. Tokyo 38(4): 87. pl. 39 | 1916 |
| Thuidiaceae | |
Ptychodium pfundtneri
| Limpr. | Laubm. Deutschl. 2: 796 | 1895 |
| Thuidiaceae | |
Ptychodium plicatulum
| Cardot | Beih. Bot. Centralbl., Abt. 2 19(2): 132. 24 | 1905 |
| Thuidiaceae | ! |
Ptychodium plicatum
| (Schleich. ex F. Weber & D. Mohr) Schimp. | Syn. Musc. Eur. 527 | 1860 |
| Thuidiaceae | * |
Ptychodium rigescens
| (Lindb.) I. Hagen | Kongel. Norske Vidensk. Selsk. Skr. (Trondheim) 1897(2): 27 | 1897 [1898] |
| Thuidiaceae | |
Ptychodium sciuroides
| (Kindb.) I. Hagen | Kongel. Norske Vidensk. Selsk. Skr. (Trondheim) 1897(2): 27 | 1897 [1898] |
| Thuidiaceae | |
Ptychodium serratum
| Laz. | Trudy Dal'nevost. Fil. Akad. Nauk S.S.S.R., Ser. Bot. 2: 897 | 1937 |
| Thuidiaceae | ** |
Ptychodium tanguticum
| Broth. | Nuovo Giorn. Bot. Ital., n.s. 3: 117 | 1896 |
| Thuidiaceae | |
Ptychodium tauricum
| Sapjegin | Zap. Novorossiisk. Obshch. Estestvoisp. 36: 230 | 1910 |
| Thuidiaceae | |
Ptychodium trisulcatum
| J.J. Amann | Bull. Murith. Soc. Valais. Sci. Nat. 39: 354 | 1916 |