| Name | Ilex guayusa Loesener |
| Authorship | Loesener |
| Rank | Species |
| Placed in | Ilex |
| Citation | 1901 Nova Acta Acad. Caes. Leop.-Carol. German. Nat. Cur. 78: 310 |
| Holdings | 5 Specimens held in the Harvard University Herbaria identified as Ilex guayusa Loesener |
| Identification made in | [no date] (5) |
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