| Name | Peronospora gangliformis f. lactucae-sativae Saccardo | 
| Authorship | Saccardo | 
| Rank | Forma | 
| NomenclaturalStatus | NomLeg | 
| Placed in | Peronospora gangliformis (Berkeley) Tulasne | 
| Citation | 1876 Mycoth. Veneta Cent. 4: no. 371 | 
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Peronospora gangliformis f. lactucae-sativae Saccardo | 
| Identification made in | [no date] (1) |