| Name | Polypodium angustum (Humboldt & Bonpland ex Willdenow) Mettenius |
| Authorship | (Humboldt & Bonpland ex Willdenow) Mettenius |
| Rank | Species |
| NomenclaturalStatus | LaterHomonym |
| Placed in | Polypodium Linnaeus |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Polypodium angustum (Humboldt & Bonpland ex Willdenow) Mettenius |
| Identification made in | [no date] (1) |
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