| Name | Geoglossum cookeanum Nannfeldt |
| Authorship | Nannfeldt |
| Rank | Species |
| Placed in | Geoglossum |
| GUID | urn:lsid:indexfungorum.org:names:286618 |
| Citation | 1942 Arch. Bot. (Leipzig) 20: 22 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Geoglossum cookeanum Nannfeldt |
| Identification made in | [no date] (2) |