| Classification | Lichens: Verrucaria |
| Harvard University Herbaria Barcode(s) | 00302939 |
| Collector | J. W. Thomson |
| Collector number | 25679 |
| Country | United States of America |
| State | Wisconsin |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Wisconsin: Dane County |
| Locality | In quarry at Intersection of hwys JG, G, and A; 8 mi S of Mt. Horeb |
| Date Collected | 1955-09-22 |
| Substrate | on rock [saxicolous] |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/7e7f913b-e2de-40d1-a729-2774cf8c08a4 |
| Harvard University Herbaria Barcode | 00302939 |
| Herbarium | FH |
| Previous ownership | [ex Herbarium WIS] |
| Determination | Verrucaria calkinsiana Servít |
| Determination Remarks | [is filed under name] [is label name] [is Current name] |
| Preparation Type | Packet |
| Preparation Method | Dried |
