| Hymenophyllaceae | |
Hymenophyllum fucoides var. calodictyon
| (Bosch) Stolze | Fieldiana, Bot., n.s. 20: 56 | 1989 |
| Hymenophyllaceae | |
Hymenophyllum fucoides var. chachapoyense
| Stolze | Fieldiana, Bot., n.s. 20: 57 | 1989 |
| Hymenophyllaceae | |
Hymenophyllum fucoides var. frigidum
| Liebm. | Kongel. Danske Vidensk. Selsk. Skr., Naturvidensk. Math. Afd., ser. 5, 1: 291 | 1849 |
| Hymenophyllaceae | |
Hymenophyllum fucoides var. fucoides
| | | |
| Hymenophyllaceae | |
Hymenophyllum fucoides var. integrum
| Kuhn ex Christ | Prim. Fl. Costaric. 3(1): 3–4 | 1901 |
| Hymenophyllaceae | |
Hymenophyllum fucoides var. pedicellatum
| (Kunze ex Klotzsch) Hieron. | Bot. Jahrb. Syst. 34(4): 435 | 1904 |