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CCDB → Pteridophytes → Hymenophyllaceae → Hymenophyllum → Hymenophyllum undulatum (Sw.) Sw.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Mecodium undulatum (Sw.) Copel. | Hymenophyllum undulatum (Sw.) Sw. | 28 | IPCN65 | Walker 1964-65 | |||
| ! | Mecodium undulatum (Sw.) Copel. | Hymenophyllum undulatum (Sw.) Sw. | 56 | Love, 1977 | Walker, T. G. 196 |