| Name | Mannia pilosa (Hornemann) Frye & L. Clark |
| Authorship | (Hornemann) Frye & L. Clark |
| Rank | Species |
| Placed in | Mannia |
| Citation | 1937 Univ. Wash. Publ. Biol. 6(1): 64 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Mannia pilosa (Hornemann) Frye & L. Clark |
| Identification made in | [no date] (2) |