| Name | Endogone tenebrosa Thaxter |
| Authorship | Thaxter |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Endogone |
| Citation | 1922 Proc. Amer. Acad. Arts 57: 314 |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Endogone tenebrosa Thaxter |
| Identification made in | [no date] (3) |