| Name | Isopterygium guatemalense E. B. Bartram |
| Authorship | E. B. Bartram |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Isopterygium |
| Citation | 1946 Bryologist 49: 123 |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Isopterygium guatemalense E. B. Bartram |
| Identification made in | [no date] (2), 1988 (1), 2014 (1) |