| Name | Aecidium crassum f. rhamni-cathartici Saccardo | 
| Authorship | Saccardo | 
| Rank | Forma | 
| NomenclaturalStatus | NomLeg | 
| Placed in | Aecidium crassum Persoon: Persoon | 
| Citation | 1876 Mycoth. Veneta Cent. 9: no. 883 | 
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Aecidium crassum f. rhamni-cathartici Saccardo | 
| Identification made in | [no date] (1) |