| Name | Leucopaxillus gracillimus Singer & A. H. Smith |
| Authorship | Singer & A. H. Smith |
| Rank | Species |
| Placed in | Leucopaxillus Boursier |
| Citation | 1943 ["1942"] Pap. Michigan Acad. Sci. 28: 131 |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Leucopaxillus gracillimus Singer & A. H. Smith |
| Identification made in | [no date] (4) |