| Name | Stereum spongiosum Massee |
| Authorship | Massee |
| Rank | Species |
| Placed in | Stereum |
| Citation | 1890 J. Linn. Soc., Bot. 27: 127 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Stereum spongiosum Massee |
| Identification made in | 2022 (2) |