| Name | Guioa glauca f. psilocalyx Radlkofer |
| Authorship | Radlkofer |
| Rank | Forma |
| NomenclaturalStatus | NomLeg |
| Placed in | Guioa glauca (Labillardiere) Radlkofer |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Guioa glauca f. psilocalyx Radlkofer |
| Identification made in | [no date] (1) |