| Name | Isothecium myosuroides subsp. brevinerve Kindberg |
| Authorship | Kindberg |
| Rank | Subspecies |
| Placed in | Isothecium myosuroides Bridel |
| Citation | 1893 Ottawa Naturalist 7: 20 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Isothecium myosuroides subsp. brevinerve Kindberg |
| Identification made in | [no date] (2) |