| Name | Polyctenium williamsiae Rollins |
| Authorship | Rollins |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Polyctenium |
| GUID | urn:lsid:ipni.org:names:205330-2 |
| Citation | 1983 J. Arnold Arbor. 64: 508 |
| Holdings | 5 Specimens held in the Harvard University Herbaria identified as Polyctenium williamsiae Rollins |
| Identification made in | [no date] (5) |
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