| Name | Phragmidium obtusum f. potentillae-vernae Saccardo |
| Authorship | Saccardo |
| Rank | Forma |
| NomenclaturalStatus | NomLeg |
| Placed in | Phragmidium obtusum (F. Strauss) J. C. Schmidt & Kunze |
| Citation | 1879 Mycoth. Veneta Cent. 14: no. 1320 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Phragmidium obtusum f. potentillae-vernae Saccardo |
| Identification made in | [no date] (1) |
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