| 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) |