| Name | Microlejeunea ruthii A. Evans |
| Authorship | A. Evans |
| Rank | Species |
| Placed in | Microlejeunea Stephani |
| Citation | 1902 Mem. Torrey Bot. Club 8: 161 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Microlejeunea ruthii A. Evans |
| Identification made in | [no date] (2) |