| Name | Porpidia cinereoatra (Acharius) Hertel & Knoph |
| Authorship | (Acharius) Hertel & Knoph |
| Rank | Species |
| Placed in | Porpidia Körber |
| GUID | urn:lsid:indexfungorum.org:names:355654 |
| Citation | 1984 Beih. Nova Hedwigia 79: 437 |
| Holdings | 17 Specimens held in the Harvard University Herbaria identified as Porpidia cinereoatra (Acharius) Hertel & Knoph |
| Identification made in | [no date] (16), 2000 (1) |
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