| Classification | Hypnaceae: Ptilium |
| Harvard University Herbaria Barcode(s) | 00920042 |
| Collector | R. R. Ireland & G. W. Argus |
| Collector number | 21489 |
| Country | Canada |
| State | Quebec Province |
| Geography | North America: North America (CA, US, MX) (Region): Canada: Quebec Province |
| Locality | [data not captured] |
| Date Collected | 1983-07-24 |
| Project | Lichen and Bryophyte TCN |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/330cbeab-4944-408d-8585-0537419c4ebf |
| Harvard University Herbaria Barcode | 00920042 |
| Herbarium | FH |
| Family | Hypnaceae |
| Determination | Ptilium crista-castrensis (Hedwig) De Notaris |
| Determination Remarks | [filed under] [current name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Packet |
| Preparation Method | Dried |
