| Name | Heterothecium nannarium Tuckerman |
| Authorship | Tuckerman |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Heterothecium Flotow |
| GUID | urn:lsid:indexfungorum.org:names:386874 |
| Citation | 1872 Gen. Lich. 176 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Heterothecium nannarium Tuckerman |
| Identification made in | [no date] (1), 2007 (1) |