| Name | Polyporus caespitosissimus Singer |
| Authorship | Singer |
| Rank | Species |
| Placed in | Polyporus |
| GUID | urn:lsid:indexfungorum.org:names:304137 |
| Citation | 1951 ["1949"] Lilloa 22: 269 |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Polyporus caespitosissimus Singer |
| Identification made in | [no date] (4) |
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