| Name | Physarum atrum Schweinitz |
| Authorship | Schweinitz |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Physarum |
| Holdings | 10 Specimens held in the Harvard University Herbaria identified as Physarum atrum Schweinitz |
| Identification made in | [no date] (10) |
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