| Classification | Hypnaceae: Ptilium |
| Harvard University Herbaria Barcode(s) | 00920222 |
| Collector | A. H. W. Povah |
| Collector number | 221 |
| Country | United States of America |
| State | Michigan |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Michigan: Keweenaw County: Isle Royale |
| Locality | [data not captured] |
| Date Collected | 1930-08-15 |
| Project | Lichen and Bryophyte TCN |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/5cdb2695-3f9a-4922-9a73-a91e3a9a4f44 |
| Harvard University Herbaria Barcode | 00920222 |
| Herbarium | FH |
| Family | Hypnaceae |
| Determination | Ptilium crista-castrensis (Hedwig) De Notaris |
| Determination Remarks | [is filed under name] [is Current name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Packet |
| Preparation Method | Dried |
