| Classification | Hypnaceae: Ptilium |
| Harvard University Herbaria Barcode(s) | 00920179 |
| Collector | C. H. Knowlton |
| Country | United States of America |
| State | Massachusetts |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Massachusetts: Hampden County: Granville |
| Locality | [no additional data] |
| Date Collected | 1911-04-19 |
| Project | Lichen and Bryophyte TCN |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/eed737c5-7f01-4a1d-ab69-e9147ffa555d |
| Harvard University Herbaria Barcode | 00920179 |
| Herbarium | NEBC |
| 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 |
