| Name | Hysteropezizella diminuens (P. Karsten) Nannfeldt |
| Authorship | (P. Karsten) Nannfeldt |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Hysteropezizella |
| Citation | 1932 Nova Acta Regiae Soc. Sci. Upsal. Ser. 4 8(no. 2): 114 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Hysteropezizella diminuens (P. Karsten) Nannfeldt |
| Identification made in | [no date] (2) |