| Classification | Lichens: Verrucaria | 
| Barcode(s) | 00494088 | 
| Type Status | Isotype | 
| Collector | W. W. Calkins | 
| Country | United States of America | 
| State | Illinois | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Illinois: Cook County | 
| Locality | [no additional data] | 
| Project | Lichen and Bryophyte TCN | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/a8bfe064-8aa4-4b98-8a5a-fffbf55e4815 | 
| Harvard University Herbaria Barcode | 00494088 | 
| Herbarium | FH | 
| Type Status |  Isotype | 
| Isotype of |  Verrucaria prospersella Nylander | 
| Determination Remarks |  [filed under] [current name] | 
| Taxon Reference | (for  Verrucaria prospersella Nylander) Lich. Jap. 1890. 108. | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Packet | 
| Preparation Method | Dried |