| Name | Filoboletus gracilis (Klotzsch ex Berkeley) Singer |
| Authorship | (Klotzsch ex Berkeley) Singer |
| Rank | Species |
| Placed in | Filoboletus |
| Citation | 1945 Lloydia 8(3): 216 |
| Holdings | 5 Specimens held in the Harvard University Herbaria identified as Filoboletus gracilis (Klotzsch ex Berkeley) Singer |
| Identification made in | [no date] (5) |