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