| Name | Leucopaxillus amarus f. roseibrunneus (Murrill) R. Singer & A. H. Smith |
| Authorship | (Murrill) Singer & A. H. Smith |
| Rank | Forma |
| Placed in | Leucopaxillus amarus (Albertini & Schweinitz) Kühner |
| GUID | urn:lsid:indexfungorum.org:names:346229 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Leucopaxillus amarus f. roseibrunneus (Murrill) R. Singer & A. H. Smith |
| Identification made in | [no date] (1), 2013 (1) |