| Name | Uraecium extensum (Arthur) Cummins |
| Authorship | (Arthur) Cummins |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Uraecium Arthur |
| Citation | 1956 Mycologia 48(4): 607 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Uraecium extensum (Arthur) Cummins |
| Identification made in | [no date] (1) |