| Classification | Lichens: Verrucaria |
| Harvard University Herbaria Barcode(s) | 00494289 |
| Collector | H. E. Hasse |
| Country | United States of America |
| State | California |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: California: Los Angeles County: Catalina Island |
| Locality | [no additional data] |
| Project | Lichen and Bryophyte TCN |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/3e209232-5377-451f-bf71-88aeb80ec445 |
| Harvard University Herbaria Barcode | 00494289 |
| Herbarium | FH |
| Determination | Verrucaria nigrescens Persoon |
| Determination Remarks | [filed under] [current name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Packet |
| Preparation Method | Dried |
