| Name | Collema sp. |
| Authorship | |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Collema (Weber) F. H. Wiggers |
| Holdings | 43 Specimens held in the Harvard University Herbaria identified as Collema sp. |
| Identification made in | [no date] (41), 1904 (1), 1909 (1) |