| Name | Collema pustulatum Acharius |
| Authorship | Acharius |
| Rank | Species |
| Placed in | Collema (Weber) F. H. Wiggers |
| GUID | urn:lsid:indexfungorum.org:names:383413 |
| Citation | 1814 Syn. Meth. Lich. [Acharius] 317 |
| Holdings | 20 Specimens held in the Harvard University Herbaria identified as Collema pustulatum Acharius |
| Identification made in | [no date] (19), 2015 (1) |