| Name | Hapalopilus nidulans (Fries) P. Karsten: Fries |
| Authorship | (Fries) P. Karsten: Fries |
| Rank | Species |
| Placed in | Hapalopilus |
| Citation | 1881 Rev. Mycol. (Paris) 3(no. 9): 18 |
| Holdings | 30 Specimens held in the Harvard University Herbaria identified as Hapalopilus nidulans (Fries) P. Karsten: Fries |
| Identification made in | [no date] (30) |