| Name | Cayaponia gracillima (Cogniaux) Cogniaux |
| Authorship | (Cogniaux) Cogniaux |
| Rank | Species |
| NomenclaturalStatus | Unknown |
| Placed in | Cayaponia Silva Manso |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Cayaponia gracillima (Cogniaux) Cogniaux |
| Identification made in | [no date] (1) |