| Name | Astomum muhlenbergianum (Swartz) Grout |
| Authorship | (Swartz) Grout |
| Rank | Species |
| Placed in | Astomum |
| Citation | 1938 Moss Fl. N. Amer. 1: 152 |
| Holdings | 43 Specimens held in the Harvard University Herbaria identified as Astomum muhlenbergianum (Swartz) Grout |
| Identification made in | [no date] (43) |