| Name | Microstoma protractum (Fries) Kanouse |
| Authorship | (Fries) Kanouse |
| Rank | Species |
| Placed in | Microstoma |
| GUID | urn:lsid:indexfungorum.org:names:521598 |
| Citation | 1948 Mycologia 40: 486 |
| Holdings | 6 Specimens held in the Harvard University Herbaria identified as Microstoma protractum (Fries) Kanouse |
| Identification made in | [no date] (6) |