| Classification | Caloplacaceae: Caloplaca |
| Harvard University Herbaria Barcode(s) | 00302168 |
| Collector | L. F. Koch |
| Collector number | 351 |
| Country | United States of America |
| State | California |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: California: Marin County |
| Locality | 15.4 miles from Petaluma towards Pt. Reyes Station |
| Date Collected | 1939-03-12 |
| Container | California |
| Substrate | on rock [saxicolous] |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/7d11f63c-c4fe-4552-8dce-15d23f704a9f |
| Harvard University Herbaria Barcode | 00302168 |
| Herbarium | FH |
| Previous ownership | ex Herbarium of the University of California |
| Family | Caloplacaceae |
| Determination | Caloplaca saxicola (Hoffmann) Nordin |
| Determined by | K. Knudsen (UCR) |
| Date Determined | 2010-03-03 |
| Determination Remarks | [current name] |
| Family | Caloplacaceae |
| Determination | Compare Caloplaca ignea Arup |
| Determined by | C. Wetmore (MIN) |
| Date Determined | 1997-01-** |
| Family | Caloplacaceae |
| Determination | Caloplaca murorum (Hoffmann) Th. Fries |
| Determination Remarks | [label name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Packet |
| Preparation Method | Dried |
