| Name | Pachyphloeus thysellii W. Colgan & Trappe |
| Authorship | W. Colgan & Trappe |
| Rank | Species |
| Placed in | Pachyphloeus Tulasne & C. Tulasne |
| Citation | 2004 Mycotaxon 90(2): 282 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Pachyphloeus thysellii W. Colgan & Trappe |
| Identification made in | [no date] (1) |