| Classification | Parmeliaceae: Letharia | 
| Harvard University Herbaria Barcode(s) | 00442815 | 
| Collector | S. Hammer | 
| Collector number | SH 1828 | 
| Country | United States of America | 
| State | California | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: California: Sierra County | 
| Locality | [data not captured] | 
| Date Collected | 1987-05-18 | 
| Project | Lichen and Bryophyte TCN | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/ab3cb540-01e8-4dfc-a175-5bdff595494c | 
| Harvard University Herbaria Barcode | 00442815 | 
| Herbarium | FH | 
| Family | Parmeliaceae | 
| Determination | Letharia columbiana (Nuttall) J. W. Thomson | 
| Determination Remarks | [filed under] [current name] | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Packet | 
| Preparation Method | Dried |