| Name | Hymenophyllum pilosissimum C. Christensen |
| Authorship | C. Christensen |
| Rank | Species |
| Placed in | Hymenophyllum Smith |
| Citation | 1934 Gard. Bull. Straits Settlem. 7: 213 |
| Holdings | 10 Specimens held in the Harvard University Herbaria identified as Hymenophyllum pilosissimum C. Christensen |
| Identification made in | [no date] (5), 1935 (3), 1980 (1), 1999 (1) |