| Name | Abortiporus biennis (Bulliard: Fries) Singer |
| Authorship | (Bulliard: Fries) Singer |
| Rank | Species |
| Placed in | Abortiporus |
| Citation | 1944 Mycol. Balcanica 36(1): 68 |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Abortiporus biennis (Bulliard: Fries) Singer |
| Identification made in | [no date] (3) |
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