| Name | Hymenophyllum obtusum Hooker & Arnott |
| Authorship | Hooker & Arnott |
| Rank | Species |
| Placed in | Hymenophyllum Smith |
| Citation | 1832 Bot. Beechey Voy. 109 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Hymenophyllum obtusum Hooker & Arnott |
| Identification made in | 1976 (1) |