| Name | Cystopus candidus f. capsellae P. Karsten | 
| Authorship | P. Karsten | 
| Rank | Forma | 
| Placed in | Cystopus candidus (Persoon) Léveillé | 
| Citation | 1866 Fungi Fenniae Exsicc. 4: 399 | 
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Cystopus candidus f. capsellae P. Karsten | 
| Identification made in | [no date] (2) |