| Pottiaceae | |
Hymenostylium curvirostrum var. anoectangioides
| (Thér.) Casares-Gil | Fl. Ibér. Brióf., Musg. 406 | 1932 |
| Pottiaceae | |
Hymenostylium curvirostrum var. bicolor
| Dixon | Ann. Bryol. 3: 53 | 1930 |
| Pottiaceae | |
Hymenostylium curvirostrum fo. brevisetum
| (Nees & Hornsch.) Dalla Torre & Sarnth. | Fl. Tirol 5: 121 | 1902 |
| Pottiaceae | |
Hymenostylium curvirostrum var. cataractarum
| (Schimp.) Limpr. | Laubm. Deutschl. 1: 240 | 1886 |
| Pottiaceae | |
Hymenostylium curvirostrum var. commutatum
| (Mitt.) I. Hagen | Tromsø Mus. Aarsh. 21–22(1): 2 | 1899 |
| Pottiaceae | ** |
Hymenostylium curvirostrum fo. filiforme
| Herzog | Wiener Bot. Z. 93: 37 | 1944 |
| Pottiaceae | |
Hymenostylium curvirostrum var. insigne
| (Dixon) G. Roth | Eur. Laubm. 1: 557 | 1904 |
| Pottiaceae | |
Hymenostylium curvirostrum var. laeviusculum
| (Lindb.) Paris | Index Bryol. (ed. 2) 2: 363 | 1904 |
| Pottiaceae | ** |
Hymenostylium curvirostrum var. latifolium
| I. Hagen | Kongel. Norske Vidensk. Selsk. Skr. (Trondheim) 1928(3): 56 | 1929 |
| Pottiaceae | ** |
Hymenostylium curvirostrum var. luzonense
| (Broth.) E.B. Bartram ex P.C. Chen | Stud. Ostasiat. Art. Pottiaceae 1: 60 | 1940 |
| Pottiaceae | |
Hymenostylium curvirostrum fo. megalosporum
| Latzel | Hedwigia 66: 138 | 1926 |
| Pottiaceae | ** |
Hymenostylium curvirostrum var. micrangium
| Dixon | Bryologist 30: 109 | 1928 |
| Pottiaceae | |
Hymenostylium curvirostrum var. microcarpon
| (Nees & Hornsch.) Venturi | Musc. Trentino 17 | 1899 |
| Pottiaceae | |
Hymenostylium curvirostrum var. minimum
| J.J. Amann | Mém. Soc. Vaud. Sci. Nat. 3(1): 27 | 1928 |
| Pottiaceae | |
Hymenostylium curvirostrum var. pallidisetum
| (Nees & Hornsch.) Paris | Index Bryol. (ed. 2) 2: 363 | 1904 |
| Pottiaceae | |
Hymenostylium curvirostrum fo. pomiforme
| (Nees & Hornsch.) Dalla Torre & Sarnth. | Fl. Tirol 5: 121 | 1902 |
| Pottiaceae | |
Hymenostylium curvirostrum var. rigidum
| (Schimp.) Molendo | Ber. Naturhist. Vereins Passau 10: 27 | 1875 |
| Pottiaceae | |
Hymenostylium curvirostrum var. scabrum
| (Lindb.) Limpr. | Laubm. Deutschl. 1: 239 | 1886 |
| Pottiaceae | |
Hymenostylium curvirostrum var. sendtnerianiforme
| Györffy | Mat. Természettud. Értes. 38: 347 | 1921 |
| Pottiaceae | |
Hymenostylium curvirostrum var. sinense
| Cardot & Thér. | Bull. Acad. Int. Géogr. Bot. 19: 18 | 1909 |