| Name | Hymenogaster populetorum Tulasne & C. Tulasne |
| Authorship | Tulasne & C. Tulasne |
| Rank | Species |
| Placed in | Hymenogaster |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Hymenogaster populetorum Tulasne & C. Tulasne |
| Identification made in | [no date] (4) |