| Name | Psychotria megalocalyx Müller Argoviensis |
| Authorship | Müller Arg. |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Psychotria Linnaeus |
| GUID | urn:lsid:ipni.org:names:762638-1 |
| Citation | Fl. Bras. [Martius] 6(5): 268 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Psychotria megalocalyx Müller Argoviensis |
| Identification made in | [no date] (1) |
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