| Name | Pachyphloeus melanoxanthus (Tulasne & C. Tulasne ex Berkeley) Tulasne & C. Tulasne |
| Authorship | (Tulasne & C. Tulasne ex Berkeley) Tulasne & C. Tulasne |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Pachyphloeus Tulasne & C. Tulasne |
| Holdings | 9 Specimens held in the Harvard University Herbaria identified as Pachyphloeus melanoxanthus (Tulasne & C. Tulasne ex Berkeley) Tulasne & C. Tulasne |
| Identification made in | [no date] (9) |