| Name | Tyromyces fragilis (Fries) Donk: Fries |
| Authorship | (Fries) Donk: Fries |
| Rank | Species |
| Placed in | Tyromyces |
| Citation | 1933 Meded. Bot. Mus. Herb. Rijks Univ. Utrecht 9: 148 |
| Holdings | 16 Specimens held in the Harvard University Herbaria identified as Tyromyces fragilis (Fries) Donk: Fries |
| Identification made in | [no date] (16) |