| Name | Catillaria nigroclavata (Nylander) J. Steiner |
| Authorship | (Nylander) J. Steiner |
| Rank | Species |
| Placed in | Catillaria A. Massalongo |
| Holdings | 5 Specimens held in the Harvard University Herbaria identified as Catillaria nigroclavata (Nylander) J. Steiner |
| Identification made in | [no date] (5) |