| Name | Phascum alternifolium Dickson ex Hedwig |
| Authorship | Dickson ex Hedwig |
| Rank | Species |
| Placed in | Phascum |
| Citation | 1801 Sp. Musc. Frond. 24 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Phascum alternifolium Dickson ex Hedwig |
| Identification made in | [no date] (2) |